Update to Hibernate 4.3.7, Spring 4.1.2, Javassist 3.18.2, hsqldb 2.3.2.
Move dependencies from common test-support to database-specific modules.
Add general support for incrementing/decrementing number types by reference.
Implement reference-based increment/decrement for DynamoDB.
Refactor VelocityEnhancer to support post-instantiation subclass context items.
Tracks adds separately in UpdateList instead of coercing them into the updates map.