Add and remove some plugins.

+Bundle "uggedal/go-vim"
-Bundle "delimitMate"
-Bundle "surround"
+Bundle "Raimondi/delimitMate"
+Bundle "tpope/vim-surround"
+Bundle "Gundo"
+Bundle "majutsushi/tagbar"
+Bundle "Syntastic"
+Bundle 'airblade/vim-gitgutter'