Fix IncompatibleClassChangeError from hadoop2

Patch by Mariusz Kryński, reviewed by brandonwilliams for CASSANDRA-7229
Remove CPRR/CPIF.

Patch by brandonwilliams for CASSANDRA-7570
Add cassandra.auto_bootstrap system property
patch by Joe Hohertz; reviewed by jbellis for CASSANDRA-7650
update logged message to reference correct property (tombstone_failure_threshold)
patch by Nikita Vetoshkin; reviewed by jbellis for CASSANDRA-7691
remove CPRR
changes
fix CHANGES
merge from 2.0
fix CHANGES