Correctly colour Jenkins failure notifications
Add AgileZen to list of system message senders

AgileZen is a kanban board web app.
Colour aborted jenkins jobs red
Improve matching of @mentions

- Don't match email addresses like 1234_567@chat.hipchat.com
- Match multiple mentions in one message
- Try it at http://refiddle.com/2o2
first crack at inline images
Better Inline Image Support

I've found that trying to use regex on HTML is generally a "bad idea"
Using jQuery that comes with the style we can do a cleaner match
Also added more image types
Color "still failing" Jenkins messages red
Recognize Nutella as a bot/system message
Add inline images
Tweak padding on the right side of @mentions
Tweak mention highlights to work when a mention is at end of message and to highlight : mentions without @ signs
Fix some false positives introduced in commit:15e5dd9
highlight "/cc username" style mentions
Require highlighted usernames not to be blank
Highlight mentions ending in a left paren

Also don't capture and forget the character following a mention
README update
escape HTML entities. I don't know why this code was here; it allows people to do really annoying things.
Improve inline image formatting/layout
tweak action message display style

this is something I like better, regardless of whether this is how Hipchat looks
Add support for inlining cl.ly/image/ID/content images