Merge pull request #4 from juanlizarazo/Juan

Cassandra keyspace design issue #2
creates files and code to create column family users for issue #5
Merge branch 'master' into Allenardo
inserted users for issue #5
Merge pull request #8 from juanlizarazo/Juan

keyspace.cql script issue #6
Merge pull request #7 from juanlizarazo/Allenardo

Issue #5
Updated column family users, added profile_picture column key to family