Issue #2132
- System entity's can be generated for super user.
- There are security tests generated for EntityService's 
- Menu labels for MolgenisUser, MolgenisGroup, MolgenisGroupMember under
entities label.
- Bug fix fixed generated form couldn't be edited.
- Bug fix fixed static AUTHORITY_ENTITY_WRITE_PREFIX was not correct.
Merge pull request #826 from jjettenn/master

Issue #2132