Handle clientside comment adding.
Add support for POST to proxy to GitHub API.
Save new comment model to the server.

Also adds a rawBody model property so we don't try to send the
markdown-converted comment.
Later binding of comments collection add event.
Note to tell people to login to comment.
Put the class on the link, not the paragraph.
clean html/css, fix alignment of the text
Override bootstrap code styles.
Merge branch 'master' into dev.webcompat.com

* master:
  Override bootstrap code styles.
  clean html/css, fix alignment of the text
  Put the class on the link, not the paragraph.
  Note to tell people to login to comment.
  Later binding of comments collection add event.
  Save new comment model to the server.
  Add support for POST to proxy to GitHub API.
  Handle clientside comment adding.