only return default driver if url starts with hibernate:
(cherry picked from commit 4cf8976)
dont return null for the sql keywords
(cherry picked from commit 02d2c4d)
Upgraded and fixed for liquibase 3.1.1
(cherry picked from commit aa21124)
Check for autoincrement definition in hibernate
(cherry picked from commit 5e48a4f)
Issue #28: Support compound primary keys
(cherry picked from commit cedfa67)
Finished merge from master for 3.3 release
[maven-release-plugin] prepare release liquibase-hibernate3-3.3
[maven-release-plugin] prepare for next development iteration