Adapted FAQ to the new roles and rights.
Added FAQ for activities.
Merge pull request #571 from NicoleRauch/master

Doku
SympaStub now uses a persistence so one can actually create groups as well as add and remove users.
Sanitized Sympa-Cache: Now there are no more calls after the callback....
Merge pull request #572 from NicoleRauch/master

SympaStub und SympaCache