Separate of rules that need to be shimmed from rest of css
Use minimal list of imports on homepage
Use more core elements. Remove polyme-flex-layout usage
polymer-media-query -> core-media-query
remove page-scrim (old)
use core-ajax
use core-menu and core-item for dropdown
Remove polymer-ui-icon usage
Merge branch 'master' of https://github.com/Polymer/docs
remove unused comment
Use --csp with vulcanize
this is for ios/polyfill perf. The polyfill moves over scripts to the main document, which can be a big perf it on mobile
modularize homepage css a bit more and remove polymer-ui-toolbar usage
Merge branch 'master' into perf

Conflicts:
	css/site2.css
Merge branch 'perf' of https://github.com/Polymer/docs into perf

Conflicts:
	_includes/footer.html
	css/site2.css
perf version
iOS jank fixup
- ensure side-bar can scroll
- fix polyfill rule for toolbar height
- git rid of iOS gray tap flicker
iOS jank fixup css
Convert docs-menu to use core elements
Merge branch 'perf' of https://github.com/Polymer/docs into perf
iconsets folder no longer exists