Added pathogen, NERDTree
	modified:   .bashrc
	new file:   .vim/autoload/pathogen.vim
	new file:   .vim/bundle/nerdtree
	modified:   .vim/colors/nuvola.vim
	new file:   .vim/colors/zenburn.vim
	new file:   .vim/plugin/cscope_maps.vim
	new file:   .vim/plugin/surround.vim
	modified:   .vimrc
	deleted:    vim_specific/cscope.files
	deleted:    vim_specific/cscope.in.out
	deleted:    vim_specific/cscope.out
	deleted:    vim_specific/cscope.po.out
	modified:   vim_specific/update.sh