librdmacm: fix event reporting

librdmacm: fix event reporting

Use the latest comp_channel changes to fix event reporting and avoid
hangs when destroying resources.  We need to track when closing
devices to make sure that events are canceled, and avoid issuing
new wait calls.

Minor correction to the cmatose test app to avoid busy polling of the CQ,
which can prevent other threads from running.  This leads to connection
failures when running more clients than there are CPUs in the system.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
git-svn-id: svn://openib.tc.cornell.edu/gen1/trunk@2130 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86