pithos: Remove obsolete billing code
astakos: Move code under synnefo.astakos.*
astakos: Update references
astakos: Update external references
cyclades: Move code under synnefo.cyclades.*
cyclades: Update references
cyclades: Update external references
branding: Move code under synnefo.branding.*
branding: Update references
branding: Update external references
pithos-app: Move code update synnefo.pithos.*
pithos-app: Update references
pithos-app: Update external references
pithos-backend: Move code under synnefo.pithos.*
pithos-backend: Update references
pithos-backend: Update external references
stats: Move code under synnefo.stats.*
stats: Update references
stats: Update external references
tools: Move code under synnefo.tools.*