Fix malformed html in sidebars
Move source files into app/

media/ is project level (as opposed to application level) so stays at root.
Add generated files

- Generated on 2014-01-19 using generator-jekyllrb 1.2.1, as the Gruntfile says.
- Files are new or replace the originals, except the _config.yml which is merged
  with the original.
Fix indentation on foot* partials
Re-install wiki submodule at new path
Wiki submodule bump