This update fixes the following issues:

cobbler:

- Fix for SUSE distribution detection in ISO building
(bsc#1123991)

spacecmd:

- Add '--force', '-f' option to regenerateYumCache (bsc#1127389)

spacewalk-backend:

- Make reposync use and append token correctly to the URL
- Added 'mgr-sign-metadata-ctl' for repository metadata signing

This update was imported from the SUSE:SLE-12:Update update project.