v2.1.0-rc3 release 

Update VERSION for 1.7.2 release Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

v2.1.0-rc2 release 

v2.1.0-rc1 release 

v2.1.0-rc0 release 

v2.0.0 release 

v2.0.0-rc3 release 

v2.0.0-rc2 release 

v2.0.0-rc1 release 

Tag for v2.0.0-rc0