use bootstrap
Squashed 'static/' changes from ab037ba..9ef8837

9ef8837 edit

git-subtree-dir: static
git-subtree-split: 9ef883715c8266c8c745d2cc91de54c0ab2feca6
Merge commit '7b94204c0d9cbdbd0a1071c4747446ab728d15c4'