Improved module initialization so that we can do 'import gemfire'
Switch to using Sessions for requests which allows for connection
re-use.

Testing on a simple, local setup with only a single GemFire node shows
an improvement of 25% doing only puts as the overhead of new connection
creation is avoided. Specifically, putting 10000 simple objects dropped
the time from 23 seconds to 17 seconds.
Ignore .pyc files
Fixed typo in README
Merge pull request #1 from jdeppe-pivotal/master

Module initialization and performance changes