Adding pathogen plugin for the bundle directory.

Converted previously installed surround plugin to use bundle, but not (yet)
as a real git submodule because I'm not currently on the Internet.
Converted surround plugin to git submodule.
Added some more vim plugins as submodules.
Added submodule init to Rakefile.

Moved the original, old code around.
Purged old code from Rakefile.
Added rails-vim plugin.