Add gitconfig.
Revert "Add NeoBundle plugin, as of commit f8654650f7bd5ef43a49a32134a015663fe7837e"

This reverts commit bee4ac9fcb421efb27fec46111c39ec4518bffd8.
Add neobundle.vim for real (as of e6e22e8800fe2b39d296dda2a47ba7bdc4248d8a)