This is now usable again.
- Don't delete password files in mapistoreCleanup()
- reworked the ldb cleanup and enabled it
- sql cleanup should now be able to figure out the db info from the config
regardless of the format used (xml, plist, sogo.conf or GNUstepDefaults)
(We really need a python plist parser.. the current solution is not elegant)
- Inform user of missing python packages