For Version 0.5.6

o Storage of user and admin data such as Name, Adress etc.
o Massmailing function for domains, superusers, all
o Code cleanup
o Switching as much as possible to a drivermodel like used in horde as suggested.
o Introduction of LDAP Support with the help of the above mentions drivermodel.
o Integration of AntiSPAM and AntiVIRUS configuration on user and domain base.
