FileSystem cache engine improvements.
Added method User:set_bot() and added possibility to edit bot information.
Fixed bots detection.
Errors processing rewritten.
Added functions _preg_match() and _preg_replace()
Fix for "required" textarea in TinyMCE plugin.
Some other small fixes.

System version 0.186
modules:
Cron 0.003
Blogs 0.023
HybridAuth 2.1.1-cs3
Static_pages version 0.020
plugins:
TinyMCE 3.5.8-cs3