Updated dependencies:
-	Spring version 4.1.3.RELEASE
- Spring Boot version 1.2.0.RELEASE
- JOOQ version 3.5.0
Added logging when closing database after successful transaction.
Fixed issue #9 thread local issue.
Minor change. Corrected debug log message for OrientTransactionManager.doRollback().
Merge pull request #10 from vidakovic/master

Fix for issue #9 (thread local exceptions)