Updated Entities (Second Subset) and DAOs

JPAExperiment, JPAFilemapping, JPAResult, JPAGeneralFile
DataManager - First Part
Merge branch 'master' of https://github.com/krajj7/pikater

Conflicts:
	src/org/pikater/core/agents/system/Agent_DataManager.java
	src/org/pikater/shared/database/jpa/JPABatch.java
	src/org/pikater/shared/database/jpa/JPAExperiment.java