Avoid NPE on null nested UDT inside a set

Patch by Robert Stupp; reviewed by Tyler Hobbs for CASSANDRA-8105
Merge branch 'cassandra-2.1' into trunk
Allow CassandraDaemon to be run as a managed service

Patch by Heiko Braun, reviewed by brandonwilliams for CASSANDRA-7997
Fix dupes in DISTINCT queries on static cols w/ paging

Patch by Tyler Hobbs; reviewed by Sylvain Lebresne for CASSANDRA-8108
Fix hint replay with many accumulated expired hints

patch by Aleksey Yeschenko; reviewed by Jonathan Ellis for
CASSANDRA-6998
Merge branch 'cassandra-2.0' into cassandra-2.1

Conflicts:
	CHANGES.txt
Merge branch 'cassandra-2.1' into trunk
Merge branch 'cassandra-2.0' into cassandra-2.1

Conflicts:
	CHANGES.txt
	src/java/org/apache/cassandra/db/HintedHandOffManager.java
Merge branch 'cassandra-2.1' into trunk
Fix IAE in Tuples.InValue with pre-v3 protocol

Patch by Tyler Hobbs; reviewed by Sylvain Lebresne for CASSANDRA-8062
Merge branch 'cassandra-2.1' into trunk