Fixed problems with filetypes

The vim-sensible plugin set `filetype on` too early, which
caused problems as the various bundles were loaded.

I also moved the `filetype plugin ident on` to early in the .vimrc
which I didn't notice because of vim-sensible.
Configured up nerd commenter

'bout time!

Also, it doesn't work pre vim 7.0
Added a bunch of chef stuff
just indenting