Merge pull request #80 from Kami/pin_thrift_to_0.9.0

Require thrift version to be > 0.9.0.
Fix race condition involving concurrent connect calls on 1 connection
force thrift <=0.9.0 since tests time out under 0.9.1
Merge pull request #75 from racker/fix_keyspace_not_defined

RFR -- Fix race condition that results in 'Keyspace not defined' error
update package version to 0.14.7
update CHANGES
Add missing connect call to the example in the reame.