Reintroduces work to ensure that we're closing channels and streams from
the Jsch library. This should be followed up with a unit stress test of
the ssh utils, maybe using Apache Mina SSHD.
Merge branch 'master' of ssh://git@localhost/vmware-serengeti/vhm.git

Conflicts:
	elastic-runtime2/src/main/java/com/vmware/vhadoop/vhm/hadoop/HadoopAdaptor.java