close CqlRecordWriter clients when finished
patch by Peter Williams; reviewed by jbellis for CASSANDRA-7459
Include high level sstables in lower level compactions if not compacted for a while.

Patch by marcuse, reviewed by kohlisankalp and yukim for CASSANDRA-7414
Fix Assertion errors when using empty clustering with static columns

patch by slebresne; reviewed by iamaleksey for CASSANDRA-7455
typo
Merge branch 'cassandra-1.2' into cassandra-2.0

Conflicts:
	CHANGES.txt
Split out outgoing stream throughput within a DC and inter-DC
patch by Vijay and benedict for CASSANDRA-6596
Fix compilation with java 6 (JAVA-7147 regression)
Changelog
Merge branch 'cassandra-1.2' into cassandra-2.0

Conflicts:
	CHANGES.txt
	src/java/org/apache/cassandra/utils/ByteBufferUtil.java
Fix typo in CFDefinition

patch by slebresne; reviewed by iamaleksey for CASSANDRA-7452