PluginAdd: Another Private Messaging;
#776: Fix markup in case board is empty.
#777: revert #693, back to text/html
Merge pull request #61 from Studio384/master

#777: revert #693, back to text/html
#779: Redirecting after report to forum.
Merge pull request #62 from JohnFLewis/master

#779: Redirect after report to forum.
Add nofollow to user generated links.

Fixes #786.
#765: Fix some bugs in SQLite database layer. Patch by Koos.
#765: Clean up query whitespace in MySQL drivers. Patch by Koos.
#768: Escape IP addresses when querying database.
#768: Escape IP addresses when displaying them.
#786: Add nofollow to user websites.
#778: Make sure content of code tags is not preparsed.
#767: Reverse-merge URL validation before hyperlinking to fix overdone validation.

(reverse-merged from commit 13095376ac59765e72b05a26a2d7c2e42a8c9151)
Tag the v1.5.2 release.
#829: Escape category name on profile administration page.
#822: Use a better generator for random strings.
#822: Use bin2hex() instead of a hashing function to create a readable string.
#822: Use base 64 encoding for more diverse readable strings.
Tag v1.5.3.