Update Vundle submodule to fix BundleUpdate
Update Vundle submodule to fix BundleUpdate

The submodule commit version of Vundle has an issue
(https://github.com/gmarik/Vundle.vim/issues/501) which breaks
BundleUpdate. The fix is to update manually - this should allow Vundle
to update itself in the future.

mattduck/dotfiles,mattduck/dotfiles