added support for emoji + markdown + date/time + high-res twitter pics :grinning:

:grinning: Emoji (_shortcodes_) support via [emojione](https://github.com/ranks/emojione)
:pencil2: Markdown support via [marked](https://github.com/chjj/marked)
:arrow_up: emoji & markdown encoded when data is pushed to fb & js/css assets loaded via CDN

:speech_balloon: Comments now include date/time created. legacy fallback to ¯\\_(ツ)_/¯
for old comments
:symbols: Also added regex to grab a higher resolution version of twitter profile
pics (what are we, retina-less savages?)
Also, made null comment counts read as :zero:. 

Extracted from my mods on [gitat.me](http://gitat.me)