add HAE repository
Use SLE11-HAE-SP3-Pool / SLE11-HAE-SP3-Updates for HAE

Also we do not create the repos if missing: barclamp-provisioner will be
clever enough to skip them when missing.
Install pacemaker barclamp in roxy
Add HAE repos in stoney too
Merge pull request #2007 from vuntz/hae

Add HAE repos