Simplify CompressedRandomAccessReader to work around JDK FD bug
patch by jbellis; reviewed by Aleksey Yeschenko and tested by Cathy Daw for CASSANDRA-5088
Show progress on nodetool repair command; patch by yukim reviewed Sylvain Lebresne for CASSANDRA-4767
Merge branch 'cassandra-1.1' into cassandra-1.2

Conflicts:
	CHANGES.txt
	src/java/org/apache/cassandra/io/compress/CompressedRandomAccessReader.java
	src/java/org/apache/cassandra/service/StorageService.java
	src/java/org/apache/cassandra/service/StorageServiceMBean.java
	src/java/org/apache/cassandra/tools/NodeCmd.java
	src/java/org/apache/cassandra/tools/NodeProbe.java