Alex Crichton 9306e840f5 rustdoc: Migrate from sundown to hoedown
This primary fix brought on by this upgrade is the proper matching of the ```
and ~~~ doc blocks. This also moves hoedown to a git submodule rather than a
bundled repository.

Additionally, hoedown is stricter about code blocks, so this ended up fixing a
lot of invalid code blocks (ending with " ```" instead of "```", or ending with
"~~~~" instead of "~~~").

Closes 
2014-05-03 17:36:20 -07:00
..
2013-10-29 16:22:08 -07:00
2014-05-03 17:36:20 -07:00
2014-02-02 10:59:14 -08:00
2013-10-29 16:22:08 -07:00
2014-02-14 19:17:50 -08:00