Added template functions for arithmetic.
Split the "TO-DO" section of README.md into it's own file.
Themes can now mark themselves as permanently disabled.
Improved the BBCode Bounds Checking.
Fixed a bug with the BBCode parser where part of the content at the end is cut off.
is_super_admin is now a hidden flag and isn't taken into account for Staff CSS.
Themes can now show a custom tag in the Theme Manager.