Release Notes for the Google App Engine ORM, a DataNucleus plugin that provides
access to the Google App Engine Datastore via JDO and JPA.

VERSION 2.1.0

- JDO Keys-only query counts toward Datastore Read instead of Datastore Small.
http://code.google.com/p/googleappengine/issues/detail?id=7712

- Expose rpc stats per txn and per PersistenceManager/EntityManager
http://code.google.com/p/datanucleus-appengine/issues/detail?id=133

- Support embedded Collections
http://code.google.com/p/datanucleus-appengine/issues/detail?id=258

- Migrate to DataNucleus 3.1
http://code.google.com/p/datanucleus-appengine/issues/detail?id=276

- DatastorePersistenceHandler has unsafe threading behaviour on DevServer resulting in infinite
  loops in HashMap.get()
http://code.google.com/p/datanucleus-appengine/issues/detail?id=279

- Fetch groups ignored when querying via JDOQL
http://code.google.com/p/datanucleus-appengine/issues/detail?id=280

- 1-N relation to abstract class using subclass-table inheritance causes exception
http://code.google.com/p/datanucleus-appengine/issues/detail?id=283

- Provide persistence property that sets default mode to "unowned"
http://code.google.com/p/datanucleus-appengine/issues/detail?id=284

- Support inheritance in elements in embedded Collections
http://code.google.com/p/datanucleus-appengine/issues/detail?id=285

- http://code.google.com/p/datanucleus-appengine/issues/detail?id=284
http://code.google.com/p/datanucleus-appengine/issues/detail?id=286


VERSION 2.0.1
-  Support JDOQL/JPQL "unsupported native operations" via DataNucleus in-memory evaluator
http://code.google.com/p/datanucleus-appengine/issues/detail?id=45

- Support JPQL Creator expression, and JDOQL new expression
http://code.google.com/p/datanucleus-appengine/issues/detail?id=177

- Support JPA SUBSTRING function in SELECT clause
http://code.google.com/p/datanucleus-appengine/issues/detail?id=181

- pm.getObjectsById(objectIds) doesn't perform batch get
http://code.google.com/p/datanucleus-appengine/issues/detail?id=197

- Support aggregate queries with result class
http://code.google.com/p/datanucleus-appengine/issues/detail?id=256

- Support fields of arrays of persistable types
http://code.google.com/p/datanucleus-appengine/issues/detail?id=263

- Support for persisting Map fields
http://code.google.com/p/datanucleus-appengine/issues/detail?id=264

- Support DN3.x TypeConverter interface and JPA2.1 AttributeConverter
http://code.google.com/p/datanucleus-appengine/issues/detail?id=265

- Support JDO3.2/JPA2.1 multitenancy
http://code.google.com/p/datanucleus-appengine/issues/detail?id=267

- Fetch Groups not being applied for 1:M relationships when using JDOQL Query API
http://code.google.com/p/datanucleus-appengine/issues/detail?id=268

- Unowned list throws exception when both parent and children are detached (JDO)
http://code.google.com/p/datanucleus-appengine/issues/detail?id=269

- Fetch groups ignored when querying via JDOQL
http://code.google.com/p/datanucleus-appengine/issues/detail?id=280


VERSION 2.0.0

- Reenable compiled query cache
http://code.google.com/p/datanucleus-appengine/issues/detail?id=8

- Investigate id gen flexibility
http://code.google.com/p/datanucleus-appengine/issues/detail?id=12

- JPA: Support @Temporal
http://code.google.com/p/datanucleus-appengine/issues/detail?id=20

- Attempt to change parent of child not detected
http://code.google.com/p/datanucleus-appengine/issues/detail?id=62

- parent PC cannot have more than one field that are of the same child PC
http://code.google.com/p/datanucleus-appengine/issues/detail?id=73

- Support unindexed properties on Version columns
http://code.google.com/p/datanucleus-appengine/issues/detail?id=79

- Support for unowned relationships
http://code.google.com/p/datanucleus-appengine/issues/detail?id=86

- Fail to update value of an indexed list (as oppsed to @Order) child
http://code.google.com/p/datanucleus-appengine/issues/detail?id=90

- @Persistent(embedded="true") should be equivalent to @Embedded
http://code.google.com/p/datanucleus-appengine/issues/detail?id=93

- @Embedded doesn't support nullIndicatorColumn/nullIndicatorValue and never
returns null
http://code.google.com/p/datanucleus-appengine/issues/detail?id=98

- Upgrade to latest DataNucleus
http://code.google.com/p/datanucleus-appengine/issues/detail?id=103

- Add support for pks of type long
http://code.google.com/p/datanucleus-appengine/issues/detail?id=109

- Raise exception when lhs of contains is not a collection.
http://code.google.com/p/datanucleus-appengine/issues/detail?id=118

- If connection was obtained when non-transactional, start of a transaction
doesn't enlist the connection in the transaction.
http://code.google.com/p/datanucleus-appengine/issues/detail?id=121

- pm.makePersistent doesn't persist for class with reference to same class
http://code.google.com/p/datanucleus-appengine/issues/detail?id=125

- EntityExistsException does not cause current transaction marked as
rollbackOnly
http://code.google.com/p/datanucleus-appengine/issues/detail?id=130

- Shared Child Class Exception
http://code.google.com/p/datanucleus-appengine/issues/detail?id=138

- Silent exception (and tx rollback) when using @Version with a date field
http://code.google.com/p/datanucleus-appengine/issues/detail?id=141

- Cannot delete detached object outside a txn (JPA)
http://code.google.com/p/datanucleus-appengine/issues/detail?id=142

- makePersistent does not wrap ArrayList with SCO wrapper.
http://code.google.com/p/datanucleus-appengine/issues/detail?id=144

- datanucleus.DetachAllOnCommit doesn't work properly
http://code.google.com/p/datanucleus-appengine/issues/detail?id=151

- Support JDOQL Query.setCandidates()
http://code.google.com/p/datanucleus-appengine/issues/detail?id=155

- Investigate pm.getXXX methods that don't take a Class arg
http://code.google.com/p/datanucleus-appengine/issues/detail?id=164

- One-to-One bidir relation insert in single persist throws exception
http://code.google.com/p/datanucleus-appengine/issues/detail?id=165

- Support JDOQL/JPQL setResultClass
http://code.google.com/p/datanucleus-appengine/issues/detail?id=166

- API for translating JDO-managed objects into low-level entities
http://code.google.com/p/datanucleus-appengine/issues/detail?id=168

- Requirement to have datanucleus-jpa in CLASSPATH when using JDO?
http://code.google.com/p/datanucleus-appengine/issues/detail?id=173

- CascadeType.ALL on ManyToOne causes StackOverflow
http://code.google.com/p/datanucleus-appengine/issues/detail?id=178

- List.remove(int index) doesn't work correctly
http://code.google.com/p/datanucleus-appengine/issues/detail?id=179

- NontransactionalWrite = true doesn't allow the creation of two root entities
with one EntityManager
http://code.google.com/p/datanucleus-appengine/issues/detail?id=183

- Object manager closed | Strust 2| GAE
http://code.google.com/p/datanucleus-appengine/issues/detail?id=186

- Embedding a persistance capable object that has a primary key id field result
in an exception
http://code.google.com/p/datanucleus-appengine/issues/detail?id=195

- Support Version fields of type Timestamp
http://code.google.com/p/datanucleus-appengine/issues/detail?id=206

- Support interfaces for defining BIDIRECTIONAL 1:1 and 1:m relationships in JDO
http://code.google.com/p/datanucleus-appengine/issues/detail?id=207

- JPA/JDO entity listener callbacks are not invoked when using Query API
http://code.google.com/p/datanucleus-appengine/issues/detail?id=210

- schema migration: can't read a String property into a Text field
http://code.google.com/p/datanucleus-appengine/issues/detail?id=212

- JDO @Element(serialized="true") Fails Exceptionally
http://code.google.com/p/datanucleus-appengine/issues/detail?id=215

- JPA @Version annotation doesn't work on Super class
http://code.google.com/p/datanucleus-appengine/issues/detail?id=220

- request for enabling trace of data store access (plus question on JDO
lazy-loading behavior)
http://code.google.com/p/datanucleus-appengine/issues/detail?id=223

- Can still retrieve a P_DELETED object via getObjectById when deleted
non-transactional
http://code.google.com/p/datanucleus-appengine/issues/detail?id=227

- Calling pm.getObjectById(pm.newObjectIdInstance(MyClass.class, longIdOrName))
doesn't work as expected
http://code.google.com/p/datanucleus-appengine/issues/detail?id=233

- Can't store null value in LinkedList<Integer>
http://code.google.com/p/datanucleus-appengine/issues/detail?id=234

- Support datastore-identity
http://code.google.com/p/datanucleus-appengine/issues/detail?id=236

- Support persistence of java.sql.Date/Time/Timestamp
http://code.google.com/p/datanucleus-appengine/issues/detail?id=237

- Rewrite collection backing store without reusing DataNucleus RDBMS backings
http://code.google.com/p/datanucleus-appengine/issues/detail?id=239

- Support persistence of URL, URI, UUID, Color, Point, StringBuffer, TimeZone,
Currency, Locale, BigInteger, BitSet, jodatime, javax.time
http://code.google.com/p/datanucleus-appengine/issues/detail?id=241

- Support for query result cache
http://code.google.com/p/datanucleus-appengine/issues/detail?id=252

- Support relationships using a field in the owner containing child keys
http://code.google.com/p/datanucleus-appengine/issues/detail?id=253

- Change default storage version to READ_OWNED_CHILD_KEYS_FROM_PARENTS
http://code.google.com/p/datanucleus-appengine/issues/detail?id=255

- Provide convenience Maven "pom" artifacts for JDO/JPA usage
http://code.google.com/p/datanucleus-appengine/issues/detail?id=257

VERSION 1.0.10
- Support for cross-group (XG) transactions.

VERSION 1.0.9
- Recursive relation does not work
http://code.google.com/p/datanucleus-appengine/issues/detail?id=80

- Support polymorphic relationships
http://code.google.com/p/datanucleus-appengine/issues/detail?id=153

- Support PreparedQuery#countEntities(FetchOptions)
http://code.google.com/p/datanucleus-appengine/issues/detail?id=225

VERSION 1.0.8
- batch get queries should return results in same order as the key params
http://code.google.com/p/datanucleus-appengine/issues/detail?id=132

- AND filter with one Key will return nothing
http://code.google.com/p/datanucleus-appengine/issues/detail?id=217

VERSION 1.0.7
- Support @Version columns of type int, Integer, short, and Short in addition to long and Long
http://code.google.com/p/datanucleus-appengine/issues/detail?id=205

- Fix bug in which a single eventually consistent query would cause all
subsequent queries to be eventually consistent

VERSION 1.0.6
- Support default rpc deadlines and query-specific deadlines

- Support default read consistency config and query-specific read consistency config

VERSION 1.0.5
- Child object with custom pk column can't be saved
http://code.google.com/p/datanucleus-appengine/issues/detail?id=188

- Queries with multiple contains() where one filter is on pk don't work
http://code.google.com/p/datanucleus-appengine/issues/detail?id=185

- Throw exception when filtering or sorting by pk-id or pk-name fields
http://code.google.com/p/datanucleus-appengine/issues/detail?id=190

- Throw exception when filtering or sorting by pk-id or pk-name fields
http://code.google.com/p/datanucleus-appengine/issues/detail?id=191

- Store child keys in a multi-value property on the parent
http://code.google.com/p/datanucleus-appengine/issues/detail?id=192

VERSION 1.0.4.1 Final
- Incorrect exception for multiple fields of same type
http://code.google.com/p/datanucleus-appengine/issues/detail?id=172

VERSION 1.0.4.1 RC1
- Non-persistent base classes do not work
http://code.google.com/p/datanucleus-appengine/issues/detail?id=169

- Relationships in abstract base classes don't work
http://code.google.com/p/datanucleus-appengine/issues/detail?id=171

VERSION 1.0.4 Final
- Explicitly disallow multiple relationships of the same type
http://code.google.com/p/datanucleus-appengine/issues/detail?id=154

- Occasional ArrayOutOfBoundsIndexException
http://code.google.com/p/datanucleus-appengine/issues/detail?id=156

- Support inheritance
http://code.google.com/p/datanucleus-appengine/issues/detail?id=25

- Support != queries

- Support IN queries
http://code.google.com/p/datanucleus-appengine/issues/detail?id=39

- Support datastore cursors

VERSION 1.0.4 RC1
- Inheritance is working for simple fields and embedded fields.  Relationships
in base classes are completely untested and probably do not work.

- Cannot add child to existing one-to-many if parent has Long or unencoded String pk
http://code.google.com/p/datanucleus-appengine/issues/detail?id=28

- Can't query by embedded fields at depth > 1
http://code.google.com/p/datanucleus-appengine/issues/detail?id=120

- Positional parameters don't work (JPQL)
http://code.google.com/p/datanucleus-appengine/issues/detail?id=128

- Throw JDOCanRetryException when ConcurrentMod hit during txn commit
http://code.google.com/p/datanucleus-appengine/issues/detail?id=134

- Respect JDOQL/JPQL case sensitivity for keywords, in particular "count"
http://code.google.com/p/datanucleus-appengine/issues/detail?id=139

- Put all native datastore types in the default fetch group
http://code.google.com/p/datanucleus-appengine/issues/detail?id=143

- Empty Set gets loaded from datastore as null
http://code.google.com/p/datanucleus-appengine/issues/detail?id=145

- Cannot remove element of one to many when parent has pk of type Long or unencoded String
http://code.google.com/p/datanucleus-appengine/issues/detail?id=126

- Severe problem when deleting a child object from an owned relationship (JDO)
http://code.google.com/p/datanucleus-appengine/issues/detail?id=135

- NPE resulting from corrupt JDOQL query
http://code.google.com/p/datanucleus-appengine/issues/detail?id=136

- Embedded, multi-value fields don't work
http://code.google.com/p/datanucleus-appengine/issues/detail?id=146

VERSION 1.0.3 Final
- Support delete by query (JPA)
http://code.google.com/p/datanucleus-appengine/issues/detail?id=36

- Support delete by query (JDO)
http://code.google.com/p/datanucleus-appengine/issues/detail?id=106

- pm.makePersistentAll() should use batch puts
http://code.google.com/p/datanucleus-appengine/issues/detail?id=7

- Query by key name when pk is encoded String or Key
http://code.google.com/p/datanucleus-appengine/issues/detail?id=11

- Exception: {Primary keys are immutable} thrown when cascadingly deleting of chilren with "gae.pk-name" field
http://code.google.com/p/datanucleus-appengine/issues/detail?id=91

- Make it clear that @Unique and @Uniques are not supported
http://code.google.com/p/datanucleus-appengine/issues/detail?id=22

- Warn when child fields marked for Eager/Lazy fetching
http://code.google.com/p/datanucleus-appengine/issues/detail?id=13

- Better error message for JPQL update statements
http://code.google.com/p/datanucleus-appengine/issues/detail?id=64

- Queries don't respect fetch groups
http://code.google.com/p/datanucleus-appengine/issues/detail?id=58

- Exception deleting object with gae.parent-pk field
http://code.google.com/p/datanucleus-appengine/issues/detail?id=87

- Allow embedded field restrictions in queries (JDO/JPA)
http://code.google.com/p/datanucleus-appengine/issues/detail?id=51

- Cannot modify two fields in the embedded class in one transaction
http://code.google.com/p/datanucleus-appengine/issues/detail?id=65

- Add operator LIKE support for JPA
http://code.google.com/p/datanucleus-appengine/issues/detail?id=88

- fail to serialize field that is PC -- message "Specified class class com.google.appengine.api.datastore.Blob is not persistable"
http://code.google.com/p/datanucleus-appengine/issues/detail?id=94

- Collection<Byte> anomaly
http://code.google.com/p/datanucleus-appengine/issues/detail?id=95

- Upgrade to DataNucleus 1.1.5
http://code.google.com/p/datanucleus-appengine/issues/detail?id=96

- More sensible error when ancestor query param is null.
http://code.google.com/p/datanucleus-appengine/issues/detail?id=97

- JPQL: MEMBER OF only supported when args are in the wrong order
http://code.google.com/p/datanucleus-appengine/issues/detail?id=99

- Make it clear that ManyToMany is not supported
http://code.google.com/p/datanucleus-appengine/issues/detail?id=104

- Issuing an ancestor query when a jdo/jpa txn has been started does not actually start a txn
http://code.google.com/p/datanucleus-appengine/issues/detail?id=105

- pm.deletePersistentAll() should use batch deletes
http://code.google.com/p/datanucleus-appengine/issues/detail?id=108

- Support sequences
http://code.google.com/p/datanucleus-appengine/issues/detail?id=110

- JPA support for JPQL functions CURRENT_TIMESTAMP, CURRENT_DATE
http://code.google.com/p/datanucleus-appengine/issues/detail?id=111

- Support 'is not null' in queries
http://code.google.com/p/datanucleus-appengine/issues/detail?id=116


VERSION 1.0.2 Final
N.B: This release includes a dependency on a patched version of DataNucleus core 1.1.4.
The patch was necessary to work around a bug that prevented applications from starting
when persistence.xml was located in a directory whose full path contained spaces.  The
patch that was applied to DataNucleus core 1.1.4 can be found in appengine-sdk-1_2_2_patch.patch.

- Fetched objects with multi-value props incorrectly marked dirty
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=83

- UnsupportedOperationException when updating one-to-many
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=33

- StartsWith doesn't work
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=85

- Ancestor queries execute in txn if txn is available

- Added support for gae.exclude-query-from-txn query extension

- Work around DataNucleus bug preventing app from loading persistence.xml in a
  path containing spaces.


VERSION 1.0.2 RC1
- Upgrade to DataNucleus 1.1.4

- Short entity name cannot be used in JPQL Query
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=15

- NullPointerException when adding setFirstResult or setMaxResults to query
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=38

- Adding a child to a unidirectional one-to-many when the parent is detached doesn't work
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=67

- Support long and int as substitute for child object when querying
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=1

- Support fields of type Collection
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=9

- JPQL queries with single character literals enclosed in single quotes not properly handled
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=21

- Embedded classes not working in JPA
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=55

- NPE when saving bidirectional child that hasn't been added to parent.
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=53

- ClassCastException when explicitly setting parent of child 
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=59

- Support "MEMBER OF" in jpql 
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=17

- Detached objects have SCO fields
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=60

- Cannot filter by parent if parent has a parent
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=61

- Race condition initializing datanucleus meta-data
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=63

- Take advantage of keys-only queries
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=77

- Support unindexed properties
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=78

- results.size() must be called before closing JPA Entity Manager to avoid
  'NucleusUserException: Object Manager has been closed'
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=24

VERSION 1.0.1 Final
- Fix handling of user-defined @Order
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=40

- Support field restrictions in queries
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=23

- Fix NPE when querying for null parent
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=47
  

VERSION 1.0.1 RC1
- Support contains operator in JDOQL
  http://code.google.com/p/datanucleus-appengine/issues/detail?id=2

- Support doubles as query literals
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=3

- Support BigDecimal fields
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=4

- Support persisting classes with superclasses
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=5

- Support Collection fields with serialized="true"
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=6

- Support @Lob JPA annotation
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=10

- Support @Serialized on byte[] member
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=16

- Bidirectional one-to-many when parent has long or unencoded String pk fails
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=19

- Cannot fetch many side of one-to-many when pk is Key, Long, or unencoded String
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=26

- JDOQL: Support implicit params
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=27

- Cannot add child to existing one-to-many if parent has Long or unencoded String pk
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=28

- Expose batch gets
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=29

- Can't reattach detached objects with Date props
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=30

- Fetching 1 to 1 needs to differentiate between direct and indirect children
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=31

- Support embedded classes with Key primary key
  http://code.google.com/p/datanucleus-appengine/issues/detail?can=7&id=32


VERSION 1.0.0 Final
- Fix automatic entity group assignment with non-transactional datasources.
- Support aliased table names.
- Fix getSingleResult() (jpa)
- Support filtering with transient params

-------------------------------------------------------------------------------
UNRELEASED VERSIONS
-------------------------------------------------------------------------------

VERSION 1.0.0 RC3
- Translate IllegalAccessException to JDOFatalUserException when thrown by datastore api
- Handle PMFs with no name
- Added package-info.java

VERSION 1.0.0 RC2
- Support for ShortBlob
- Support filtering with enum params
- Support count() queries
- Datastore API exceptions now properly wrapped in JDO/JPA exceptions

VERSION 1.0.0 RC1
- Support unencoded String primary keys
- Support long primary keys
- Let developers specify pk in different ways for getObjectById (JDO) and find (JPA)
- Support for Set, SortedSet, TreeSet, LinkedHashSet, LinkedList
- preserveCase is the default for the identifier factory
- Detect changes to primary key and ancestor
- Support negative literals in queries
- Querying and sorting by embedded fields
- App Engine specific meta data validation
- Detect invalid jdoql and jpql

VERSION 0.8.5
- Support java 5 enums
- OSGI-compliant manifest
- Fix single string JDOQL range queries
- Support querying parent by 1 to 1 child
- Support updates without explicit txn management (jdo)

VERSION 0.8.4
- There is no 0.8.4

VERSION 0.8.3
- There is no 0.8.3

VERSION 0.8.2
- Avoid getting entities from multiple entity groups in a single txn
- Avoid multiple writes to the same entity in a single txn
- Query by ancestor provider
- One To Many bug fixes

VERSION 0.8.1
- One To Many bug fixes
- Method renames

VERSION 0.8
- Support for non-transactional datasources.
- Fixed a nasty ClassCastException related to transaction management.

VERSION 0.7
- Removed dependency on datanucleus' rdbms jar
- Support for @OneToMany when the member is of type List
- Support for serialized members.
- Support for custom serialization strategies.

VERSION 0.6
- Implicitly assign entity groups when creating dependent children (1 to 1 only)
- Support for jdk 5.

VERSION 0.5
- Better error messages when attempting to assign null to a not-null pojo field.
- Removed jta.jar and persistence-api.1.0.2.jar from the distro - users must download
these by hand for now.

VERSION 0.4
- Support for 1-1 associations, both unidirectional and bidirectional.
- Proper handling of null fields.
- Support filtering and sorting by implicit __key__ entity property.

VERSION 0.3
- Support pks and ancestors of type Key
- Translate members of type byte[] and Byte[] to datastore type BLOB
- Support for offset in jpql and jdoql
- Support for embeddable classes

VERSION 0.2
- Support for ancestors
- Support for named keys
- Support for JPQL bind variables
- Support for limit in JDOQL and JPQL queries
- Support for querying by key
- Spec compliance for default table names.
- Spec compliance for default column names.
- Spec compliance for default version column names.

VERSION 0.1
- Initial release
- JDO and JPA support for insert, update, delete, retrieve
- JDOQL and JPQL queries.  Predicates may only use '=', '<', '<=', '>=', '>', '&&' as
  well as sort clauses.
- Basic Transaction support.

