* kb/api:
User table sequence generator for maximum compatibility
Code cleanup
Sequence generation fixes
Fixe a bug introduced in last commit (EclipseLink does not correctly support @CacheIndexes in this version) Fixe StudyClientDao Added test for the "list" method of Study service
Added list method to Study service
Don't need sql script for DDL anymore
Setting up the cache for the relevant entities
Work on entities for automatic DDL generation
Work on entities for automatic DDL generation
Begin work on entities for automatic DDL generation