Fixes bug with not using tenant id on list_tables ReST request

Closes-bug: #1300206
Change-Id: I592a6943322d1201741027c8779c1ffe61948769
Redesign indexes on projections

1) MangetoDB Table structure was redesigned
2) Tenant's keyspace "user_" was added
3) system table "magnetodb"."table_info" added to store MagnetoDB Table info and
   statuses
4) Table CRUD operation redesigned to work with "magnetodb"."table_info" table
5) Item CRUD operation was redesigned to support Local Secondary Indexes
6) Cassandra >=2.0.6 cluster required for Cassandra support
7) Cassandra python driver sources was copied to MagnetoDB codebase because
   release of version 2.0 isn't exist

Implements: blueprint redesign-indexing

Change-Id: Ifda2f9a9e315d08c944732a4aa4bcc59cb3ca583
Changed cassandra version from 2.0.2 to 2.0.6

Also used keyspases from contrib/cql_samples.txt file

Change-Id: I8bcce82c92f9de2aebae33c5cbf024f7745dd0bd
Merge "Fixes bug with not using tenant id on list_tables ReST request"
Merge "Redesign indexes on projections"
Merge "Changed cassandra version from 2.0.2 to 2.0.6"
PoC Bulk data load over network

Implemented server and client for data uploading
via streaming HTTP POST request

Partially implements: blueprint bulk-data-load-over-network