Merged revisions from 3.0.5 stable branch: 3758-3768, 3769 shall not be merged to trunk.

git-svn-id: svn://svn.ispconfig.org/ispconfig3/trunk@3770 c1a6f2c7-8504-0410-933a-a4dae0184b0a
Implemented checkboxes in Interface Config to enable showing/hiding the tabs Mail Filters, Autoresponders and Custom Rules for mailboxes.

See also http://www.howtoforge.com/forums/showthread.php?t=59539


git-svn-id: svn://svn.ispconfig.org/ispconfig3/trunk@3781 c1a6f2c7-8504-0410-933a-a4dae0184b0a
- Added: path to sendmail in server config (prepared for mailsafe module)


git-svn-id: svn://svn.ispconfig.org/ispconfig3/trunk@3797 c1a6f2c7-8504-0410-933a-a4dae0184b0a
Merged Revisions 3771-3801 from stable branch.

git-svn-id: svn://svn.ispconfig.org/ispconfig3/trunk@3802 c1a6f2c7-8504-0410-933a-a4dae0184b0a
Merged revisions 3803-3844 from stable branch.

git-svn-id: svn://svn.ispconfig.org/ispconfig3/trunk@3845 c1a6f2c7-8504-0410-933a-a4dae0184b0a