Stop directly supporting the old chat.

From now on, the script does not treat the new and old chat
equally. If it does not detect the new Twitch chat, it will
fall back to an older version of the script.

Fixes #104
Merge pull request #106 from hugomg/deprecateold

Stop directly supporting the old chat.
Make the slowmode helper purple instead of red
Fix uncolor option not using the default color
URL Fixes

- Added things to the URL Whitelist
- Brought the URL regex up to date with the latest
  version on twitch (now recognizes gg & gl TLD)
- Fixed the URL regex not having aSterisks in all the
  needed places
Merge pull request #107 from hugomg/minorcss

Some small bugfixes
Make the command filter accept more separators

It now accepts any non-letter character as a command separator.
This is needed because the new democracy mode apparently also
accepts commas as command separator (in addition to the numbers
and "+"s we were already accepting)
Merge pull request #109 from hugomg/newdemocracy

Make the command filter accept more separators
Organized source; fixes #96
Fix chat filter not hiding old messages properly

The filter would stop filtering if it hit a message
without any words in it.