Activiti Cycle: changed cycle connector configuration infrastructure, now supporting configurations for groups.

Added test case for all DAO methods
Refactored Entity names to have a common naming schema
added first hacky version of Signavio DIFF POC

Merged with changes on tag 5.0.rc1 rev. 1184: Fixed failing demo setup on mysql, oracle and postgres

Changed table name from CYCLE_<tablename> (CONFIG, TAG, LINK) to ACT_CY_<tablename> (CONFIG, TAG, LINK). 
Changed data type of VALUE_ field from varchar to text/clob in table ACT_CY_CONFIG (old: CYCLE_CONFIG).