catching datastore exceptions on all cassandra operations, instead of just on writes
clarified Raises docstrings and fixed typos
bumped version of cassandra and pycassa that we use to be the newest versions
Merge pull request #564 from shatterednirvana/unavailable-exception-cassandra

Catching Cassandra Exceptions on all DB operations
installing new version of cassandra, to fix possible silent write failure
properly searching through queue.xml in java apps with one or more queues defined
Merge pull request #570 from shatterednirvana/parsing-queue-xml-correctly-for-one-queue

properly searching through queue.xml in java apps with one or more queues defined
bumped Xss to 160k because Java 7 requires it to run Cassandra
reverted log level back to INFO
Merge pull request #568 from shatterednirvana/cassandra-1.2.5

Update Cassandra to version 1.2.5