Added docstrings.
Merge branch 'release/v0.12' into develop
bug fix
Merge branch 'develop' of https://github.com/ers-devs/ers into develop
bug fix
bug fix
bug fix
bug fix
bug fix
trying to fix a bug
bug fix
bug fix
bug fix; do not check every time when a triples is inserted via 'create' servlet if the graph is versioned or not
add servlet to randomly query zookeeper in order to test the acquire/release time for tx support
bug fix
bug fix
Merge branch 'develop' of https://github.com/ers-devs/ers into develop
bug fix
Merge branch 'develop' of https://github.com/ers-devs/ers into develop
Merge branch 'feature/added-docstrings' into develop

Conflicts:
	ers-local/ers/ers.py
	ers-local/ers/models.py
	ers-local/ers/sync_global.py