Fixes #2212 Drafts update the forum last post

http://dev.mybb.com/issues/2212
Fixes #272 Search SQL Error
Fixes #110 Link detection
Better solution for #78, #79 and http://dev.mybb.com/issues/996
Merge branch 'fix-2212' of https://github.com/JordanMussi/MyBB into JordanMussi-fix-2212
Fixes #333 delete user - thread uid
Fixes #356 Hitting Post Thread when having disallowed attachment ignores all submitted content
Fixed regex
Merge pull request #396 from Stefan-ST/fix-110

Fixes #110 Link detection
Better solution for #78, #79 and http://dev.mybb.com/issues/996
Merge pull request #395 from Stefan-ST/fix-272

Fixes #272 Search SQL Error
Security fixes for MyBB 1.6.13
Fixing line endings
Addressing #418

. . . where a guests's reported post did not display anything at all in
the 'Poster' column.
Security fixes for MyBB 1.6.13
Fixing admin/modules/styles/themes.php
$user isn't defined when calling the registration form for the first time
Fixing typo in install/resources/language.lang.php
Merge pull request #423 from WildcardSearch/fix-418

Addressing #418
Fixes #288 Profile fields post number not being checked in UCP
Fixes #288 Profile fields post number not being checked in UCP
Allows moderators to edit the field with post count check
Addressing #417

. . . where when previewing a guest's post no user name is shown.
Merge pull request #459 from WildcardSearch/fix-417

Addressing #417