Fix ReversedType.isCompatibleWith()

Patch by Tyler Hobbs; reviewed by Sylvain Lebresne for CASSANDRA-7797
Merge branch 'cassandra-2.0' into cassandra-2.1.0

Conflicts:
	CHANGES.txt
	test/unit/org/apache/cassandra/cql3/TypeTest.java
Merge branch 'cassandra-2.1.0' into cassandra-2.1