CERN ONLY - Use ai121 repos.
Make augeas more fussy.
Fix cvmfsversion variable name.
Merge new code from upstream

Conflicts:
	code/manifests/config.pp
	code/manifests/params.pp
	code/manifests/yum.pp
Add support cvmfs 2.1 server
Drop cern ai121
Merge pull request #11 from cvmfs/server

Add cvmfs_server 2.1 support