marijnh/CodeMirror — pull request #866 by bfrohs (2012-10-03 04:48:01+00:00)
Title: [Markdown] [GFM] Rewrite GFM to inherit changes from Markdown mode better.

See #865 for more info.

- Add options to Markdown mode to make it easier to extend
- Add GFM text overlay
- SHA, User@SHA, and User/Project@SHA
- #Num, User/#Num, and User/Project#Num
- Vanilla URLs
- Add GFM-specific tests
- Fix overlay code so blankLine() is called
- Fix GFM for v3

**Note:** This should only be applied against v3, as #865 was for v2 (v3 required additional fixes).