Work on #1582

Deleting a forum doesn't delete the forumpermissions
  * forumpermissions are deleted now

Changed files
  * admin/modules/forum/management.php
    * added delete query for forum permissions
Fixes #1603 Edit-button after Edit Time Limit
work on #1582

Deleting a forum doesn't delete the forumpermissions
  * Upgrade script removes forumpermissions for deleted forums

Changed files
  * install/resources/upgrade32.php
    * added
    * added delete query
Merge pull request #1605 from Nik101010/fix-1582-feature

fix: Deleting a forum doesn't delete the forumpermissions [#1582]
Fix #1580

Header's quick search should also scan messages.
https://github.com/mybb/mybb/issues/1580
MyBB 1.8.2
Versions code update
Versions code update
Fixes #1614 attachment.php PHP warning when attachment file is missing
Merge pull request #1615 from Stefan-ST/fix-1614

Fixes #1614 attachment.php PHP warning when attachment file is missing
Update to 1803

...
Merge pull request #1612 from Destroy666x/fix180

Fix #1580
Updated edittimelimit to usergroup
Merge pull request #1604 from PaulBender/fix-1603

Fixes #1603 Edit-button after Edit Time Limit
Merge branch 'feature' of https://github.com/mybb/mybb into feature