Added support for Fedora:
- added GPG-Keys for fedora versions 11 to 19 and 21
- added GPG-Key for fedora without version number
- added GPG-Key for el without version number
Added support for multiple rpmfusion repositories.
Added comments to manifest files and updated readme.
Updated supported versions (Fedora 21 is not available at rpmfusion).
Updated Modulefile
Fix typo