Remove addon header and change to marking...

...each individual emote as third-party or not. Add a different hover
effect (and asterisk) on third party emotes along with a note on the
`title` of an emote.
Merge remote-tracking branch 'origin/dev' into rework-thirdparty
Shorten third party parsing and remove special...

...styling on third party emotes. In conjunction with
c95f412379632a815152766be557341aa144a9a3 this resolves part of #52.