Don't search jdk6-specific paths in debian init
Patch by brandonwilliams, reviewed by jbellis for CASSANDRA-6396
Merge branch 'cassandra-1.2' into cassandra-2.0
Merge branch 'cassandra-2.0' into trunk
allocate fixed index summary memory pool and resample cold index summaries to use less memory
patch by Tyler Hobbs; reviewed by jbellis for CASSANDRA-5519