Cleanup
WIP: Unit-tests
Fix assertion error in ALTER TYPE RENAME

patch by mstepura & slebresn; reviewed by mstepura & slebresne for CASSANDRA-6705
Scrub should not always clear out repaired status.

Patch by marcuse, reviewed by jbellis for CASSANDRA-5351
Test are executed at last
Fixed wrong condition in formatting.
Fixed wrong expected error
Fixed "describe cluster" testcase
Driver return unprotected KS and CF names
Updated to the latest driver
Propery format Datetime
We print NULL instead of empty cells
Fixed the test CQL
Merge branch 'cassandra-2.1' into CASSANDRA-6307-cqlsh-driver