FIX (single gist): Loading gists no longer occasionally enable edit mode.

Gists original data now contain big files for reverting changes.
Merge remote-tracking branch 'origin/master'

* origin/master:
  STYLE (css): small css fixes
  UI (big files): add indication of big file
  STYLE (css): fix css colors and glitches
  FIX (loading files over 1mb): Add load file button on truncated content, changed editor to be self contained.