renamed visual-star-search plugin directory
update nerdtree from github
update supertab from github
update vim-bundler from github
update gitgutter from github
update fugitive from github
update vim-rails from github
update vim-rake from github
update vim-coffeescript from github
update vim-tmux-navigator from github
update vim-colors-solarized from github
rename BufOnly to BufOnly.vim
describe updating vim plugins