3 - added the ability to specify a super user through the SOGoSuperUsername user
5 - added the ability to view the message source;
6 - no longer autocreate folders if we are not their owners;
7 - made compatible with PostgreSQL 8.2;
8 - the months and years menus of the date selector would no longer appear;
9 - fixed a bug which would produce task SQL records which would violate
10 non-null constraints on the quick calendar tables;
11 - it was impossible to reset the start and the due date in the task editor
12 whenever they were set once;
13 - imap folders with non-ascii characters are now correctly accessed;