Disable thrift_hsha_test.py:ThriftHSHATest.test_closing_connections
update UDT tests to use frozen
Merge pull request #90 from riptano/frozen_udt

update UDT tests to use frozen
udt type renaming is removed

see CASSANDRA-6940
although naming a UDT is disabled, renaming fields within
a UDT is still possible, and we actually didn't have any coverage
there, so I adjusted the tests to attempt field renames instead.
Merge pull request #91 from riptano/type_renaming_be_gone

udt type renaming is removed
Merge branch 'master' into python-driver

Conflicts:
	user_types.py