closes #94

* enabling gemfire module and updating to release 7.0.2
* verified that there are no failures while trying to resolve gemfire repo.
* fixed an NPE.

Amending-Author: Sean Busbey <sean.busbey@gmail.com>
Signed-off-by: Sean Busbey <sean.busbey@gmail.com>

* Need a SNAPSHOT version because non-SNAPSHOT is reserved for actual releases.
* Increment minor version per pre-1.0 guidelines from the Version Numbers guide

Fixes #236.