Update dependencies.

Update depenencies for Yesod 1.1.
Update for changes in Yesod 1.1.
Add a dependency for conduit.
maximumContentLength is now a Word64.
Merge pull request #2 from ahodgen/Yesod_1_1

Yesod 1 1
Updates to use latest yesod and pandoc.
Added clean, veryclean to Makefile.
Added some scaffolding for preview.
Updated TODO.
Updated TODO.
Don't show other tabs in Edit mode.
Avoid conflict with getRobotsR and getFaviconR when subsite.

Previously gitit2 didn't work well as a subsite when the main
site defined getRobotsR or getFaviconR, since it exported these
itself.  Now it exports getGititRobotsR and getGititFaviconR
instead, so there is no conflict.

Closes #3, I believe.
Rough code for initializing wikidata if it doesn't exist.

Note:  the markup help is screwed up because the HTML gets
stripped out. Redo with a grid table.

Also, we'll eventually need a wizard to create a config
directory.
Updated TODO
Move favicon.ico, robots.txt from config to static.

Added static_path to GititConfig.
Moved settings.yaml from config to .
Beginning of transition to bootstrap.
Updated README.
Fixed Yesod link
Added section on why a rewrite?