Make flush single-pass when partition tombstones are present
patch by jbellis; reviewed by slebresne for CASSANDRA-6417
Expose a total memtable size metric for a CF

patch by Aleksey Yeschenko; reviewed by Jonathan Ellis for
CASSANDRA-6391
Merge branch 'cassandra-2.0' into trunk

Conflicts:
	CHANGES.txt
Allow specifying datacentersto participate in a repair
patch by Jimmy Mårdell; reviewed by Lyuben Todorov for CASSANDRA-6218
merge from 2.0
Remove some vestiges of the old streaming
Merge branch 'cassandra-2.0' into trunk
cqlsh: hanlde symlinks properly

patch by Yinyin L; reviewed by Aleksey Yeschenko for CASSANDRA-6425
Merge branch 'cassandra-2.0' into trunk
Expose thread pool metrics for the native protocol server

patch by mishail; reviewed by slebresne for CASSANDRA-6234
Merge branch 'cassandra-1.2' into cassandra-2.0
Merge branch 'cassandra-2.0' into trunk
Add warning on collection limitations in CQL doc
Change snapshot response message verb

to make sure response do not get dropped

patch by yukim; reviewed by jbellis for CASSANDRA-6415
Merge branch 'cassandra-1.2' into cassandra-2.0

Conflicts:
	src/java/org/apache/cassandra/service/SnapshotVerbHandler.java
Merge branch 'cassandra-2.0' into trunk
Multithreaded commitlog
patch by Benedict Elliot Smith; reviewed by jbellis for CASSANDRA-3578
Reduce gossip memory use by interning VersionedValue strings
patch by jbellis; tested by Quentin Conner for CASSANDRA-6410
Merge branch 'cassandra-1.2' into cassandra-2.0
Merge branch 'cassandra-2.0' into trunk