restructure configuration to separate software from CERN configuration
add information of cvmfs-init-scripts to cvmfs-config-cern
adjust cvmfs-universal package to cvmfs-config packages
proper installation of EGI/OSG public keys and config
fix OS X packaging
adjust Debian packaging
adjust Debian packaging
add cvmfs-config-none to Debian packaging
remove temporary files
improve dependency policy
adjust rpm installation script
adjust cloud testing
Merge pull request #645 from cvmfs/CVM-617

CVM-617

Removes CERN specific configuration from cvmfs package. The configuration and public keys are provided in cvmfs-config-... packages. The cvmfs-config-cern package replaces cvmfs-keys and cvmfs-init-scripts.