Get openstack version from hiera

Change-Id: I9b9b897f9bd31b50ff162658e712cb8bd95c42ce
formpost middleware for folsom & tempurl+formpost middleware for grizzly

Change-Id: If7b795c0b2d8d4fbff3696aa0a595d42b5c133ce
Memcache fixes

Change-Id: I2c76a9a16589b051b79f90467c156bddd219c256