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?
Added bootstrap as submodule.
Fixed duplicate name.
Fixed Makefile for new bootstrap location.
Removed table in markup.Markdown.

It was not rendering properly.
README: Added section on hacking gitit2.
Cleaned up CSS a bit.
Use standard bootstrap css instead of less mixins.
Hide Language.Haskell.TH(Inline) as it clashes with pandoc's.
Don't use old-time, so we can build successfully with ghc 7.6.2.
Merge pull request #5 from clinty/master

tweaks to build with GHC 7.6.2
Updated TODO
Added FlexibleContexts to Network/Gitit2.hs.