Fix accounting in FileCacheService to allow re-using RAR
Patch by Benedict Elliott Smith; reviewed by jbellis for CASSANDRA-6838
merge from 2.0
Fix static counter columns

patch by Aleksey Yeschenko; reviewed by Sylvain Lebresne for
CASSANDRA-6827
Merge branch 'cassandra-2.0' into cassandra-2.1

Conflicts:
	CHANGES.txt
	src/java/org/apache/cassandra/cql3/statements/SelectStatement.java
Merge branch 'cassandra-2.1' into trunk