Remove tons of references to old RB module
Fix copy&paste error
Remove MaKaCInfo.getRoomBookingModuleActive
Remove obsolete roombooking RHs/WPs
Removing pre-1.0 migrations

Some of them depend on old RB code and people can simply update to 1.2
first, if they are using a pre-1.0 version
Remove obsolete scripts
Remove obsolete RB UHs
Use custom object for broken persistent objects

That way we can delete old persistent classes while still being able to
access their data properly
Delete old roomblocking code
Fix collaboration plugins
Fix remaining JSONRPC services (and remove unused)