update vimrc & install dokuwiki, utilsnips & twig

- new plugins: utilsnips
- new syntax: twig, dokuwiki
- minor updates to `.vimrc`
remove old javascript syntax
clean up statusline, add Tagbar, JSFold
add more plugins

- vim commentary
- vim repeat
- vim speeddating
remove old supertap dependency
add new supertab version
add a bunch of bundles

- bundler
- rails
- scss syntax
- tern
- handlebars
- javascript
a bunch of improvements to vimrc

- better shortcuts for tabs
- better 'current  word ack search'
- etc