Zake 0.0.15 released

Zake was released with new fixes and sequence
id support so projects that want to test zookeeper
without a real zookeeper instance can do this with
these new features.

Pypi url @ https://pypi.python.org/pypi/zake

Change-Id: I7d73360d666e456d5481a1bd27096e3b032cd037
Merge "Zake 0.0.15 released"