adds profile_pic to the columnfamily/table users for issue #10
Merge pull request #11 from juanlizarazo/Juan

Updated column family users, added profile_picture column key Issue #10
Merge pull request #12 from juanlizarazo/Allenardo

adds profile_pic to the columnfamily/table users for issue #10
Update README.rdoc
addresses issue #5 changes name key to user_id and addresses issue #9 updating the model and view to work with Cassandra Keyspace
Merge pull request #13 from juanlizarazo/Allenardo

addresses issue #5 changes name key to user_id and addresses issue #9 up...
Conflitcs resolved merge issue #14