Updated links to userscript to gh-pages branch

Since we are now using the gh-pages branch as our "live" branch, people should install their userscripts from there.
Delete chat_filter.min.js
Filter more spam

The URL detector now accepts (and blacklists) more messages:
  - Censored URLs containing ***
  - .sh and .mx TLDs

Added some common spam to a filter
Merge pull request #64 from hugomg/spam

Spam
Increment userscript version no. to 1.6
Added the loader script

Good to have this versioned, for reference if nothing else.
Committed /u/Zephymastyx's fixes.

New twitch chat broke the old script. Zephymastyx provided a fix. There is some aesthetic work to be done but this fixes the functionality.
Minor cleanup

Fixed some names, removed a lot of mis-inserted whitespace