install-chef-suse.sh: Install rabbitmq, cinder and quantum barclamps

Also change the order of installation: first core barclamps, then
OpenStack dependencies, and finally OpenStack barclamps.
barclamp_mgmt_lib.rb: Do not add crowbar-{status,failed} multiple times

If a schema migration is called twice (which will happen if
barclamp_install.rb is called more than once for a barclamp), do not
blindly duplicate crowbar-{status,failed} elements.

(cherry-picked & enhanced by Vincent Untz <vuntz@suse.com>)
barclamp_mgmt_lib.rb: Do not call merge_i18n on install if --rpm is used

The locale data is generated at the rpm build time already.
Merge pull request #1810 from vuntz/suse-install-fixes

https://github.com/crowbar/crowbar/pull/1810

Merged by devtool for cloudsleuth