Add cassandra.auto_bootstrap system property
patch by Joe Hohertz; reviewed by jbellis for CASSANDRA-7650
Merge branch 'cassandra-2.0' into cassandra-2.1.0
update logged message to reference correct property (tombstone_failure_threshold)
patch by Nikita Vetoshkin; reviewed by jbellis for CASSANDRA-7691
Remove CPRR/CPIF.

Patch by brandonwilliams for CASSANDRA-7570

Conflicts:
	CHANGES.txt
	src/java/org/apache/cassandra/hadoop/cql3/CqlPagingRecordReader.java
Merge branch 'cassandra-2.1.0' into cassandra-2.1

Conflicts:
	CHANGES.txt
	build.xml
Merge branch 'cassandra-2.1' into trunk
remove CPRR
Merge branch 'cassandra-2.1.0' into cassandra-2.1

Conflicts:
	CHANGES.txt
Merge branch 'cassandra-2.1' into trunk
changes
Merge branch 'cassandra-2.1.0' into cassandra-2.1
Merge branch 'cassandra-2.1' into trunk
fix CHANGES
merge from 2.0
merge from 2.1.0
Merge branch 'cassandra-2.1' into trunk
fix CHANGES
Merge branch 'cassandra-2.1.0' into cassandra-2.1
Merge branch 'cassandra-2.1' into trunk