valid group information is maintained when creating a new SL mrepo
- Updated Changelog with reposync support
- Always generate metadata for 'all' repository
lftp has issues mirroring some repositories that have 302 redirects. For example, http://packages.vmware.com/tools/esx/5.0/rhel5/x86_64/ will not mirror using the standard http:// URI. By using reposync, as long as YUM can talk to the repo, it's guaranteed to be able to be mirrored. Naming the repo appropriately in the temporary YUM configuration prevents YUM from getting confused when the same repo name for different repos it's actually talking to.