Improve PasswordAuthenticator default super user setup

patch by Aleksey Yeschenko; reviewed by Jeremiah Jordan for
CASSANDRA-7788
Merge branch 'cassandra-1.2' into cassandra-2.0

Conflicts:
	CHANGES.txt
Validate empty cell names from counter updates

patch by Aleksey Yeschenko; reviewed by Jeremiah Jordan for
CASSANDRA-7798
Merge branch 'cassandra-1.2' into cassandra-2.0

Conflicts:
	CHANGES.txt
	src/java/org/apache/cassandra/cql3/Constants.java
Throw EOFException if we run out of chunks in compressed file

Patch by marcuse; reviewed by yukim for CASSANDRA-7664.
Stop inheriting liveRatio and liveRatioComputedAt from previous memtables

patch by Aleksey Yeschenko; reviewed by Jonathan Ellis for CASSANDRA-7796
Make StreamReceiveTask thread safe and gc friendly

patch by yukim; reviewed by benedict for CASSANDRA-7795
Fix ReversedType.isCompatibleWith()

Patch by Tyler Hobbs; reviewed by Sylvain Lebresne for CASSANDRA-7797
Configure system.paxos with LeveledCompactionStrategy
patch by Sankalp Kohli; reviewed by jbellis for CASSANDRA-7753
(Hadoop) fix cluster initialisation for a split fetching

patch by Jacek Lewandowski; reviewed by Alex Liu for CASSANDRA-7774
Don't send schema change msg for no-op DDL stmts

Patch by Tyler Hobbs; review by Mikhail Stepura for CASSANDRA-7600
Improve error message from 7499
Update java driver to 2.0.5 (for hadoop)
Add missing license header
Save source exception in CorruptBlockException

ninja patch by Pavel Yaskevich; ninja reviewed by Aleksey Yeschenko
Add isDense to CFMetaData#hashCode()
Always send Paxos commit to all replicas

patch by kohlisankalp; reviewed by slebresne for CASSANDRA-7479
Always reject inequality on the partition key without token()

patch by blerer; reviewed by slebresne for CASSANDRA-7722
Don't clear out range tombstones during compaction.

Patch by rlow; reviewed by marcuse for CASSANDRA-7808
Merge branch 'cassandra-1.2' into cassandra-2.0

Conflicts:
	src/java/org/apache/cassandra/db/compaction/LazilyCompactedRow.java
	test/unit/org/apache/cassandra/db/RangeTombstoneTest.java