- 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)
I didn't look... It still worked when testing #125 and is broken now. I would have to test all the stuff with SLES 11SP3 and SLES12 again and am not really motivated right now to work around new SUSE problems popping up every few weeks...