Add additional shortcuts to Slim default_options
Add data folder to repo
Changes to modernizr.js; test for legacy webkit flexbox and support for HTML5 'main' element

sed -e 's/flexWrap/flexDirection/' \
  -e 's/flexboxlegacy/webkitbox/' \
  -e 's/boxDirection/WebkitBoxFlex/' \
  -e 's/hgroup,nav/hgroup,main,nav/' \
  -e 's/hgroup mark/hgroup main mark/' \
  -i '' modernizr.js
Add universal selector for clarity and to prevent CSS compression error