- SLES 11/12 Spacewalk/SUSE Manager

- Change to add SLES 11/12 Systems to site Spacewalk/SUSE Manager
- remove wget in favour of curl (part of minimal installations on rhel/sles)
systemsmanagement:puppet is once again broken, at least for SLES, since about two weeks. I added the augeas rubygem back then to be able to use augeas statements in Puppet out of the box, like on other OSes.