Update version for 1.1.9 release
Detect memory for heap sizing on OSX.
Patch by Cathy Daw, reviewed by brandonwilliams for CASSANDRA-5157
Don't update local tokens when localTokensToRemove is empty
remove gms cruft
Merge branch 'cassandra-1.1' into cassandra-1.2

Conflicts:
	build.xml
	debian/changelog
	src/java/org/apache/cassandra/gms/PureRandom.java