Replace yepnope with HeadJS.
Add js extension when using asset tag.
Inline head.js.
Move code for script loading to asset file.
Don't manually strip newlines from social script.
Revert "Inline head.js."

This reverts commit 0f03f98c5d1477048c0d05ad1d4724eb922ebf13.
Load webfontloader in head.js.
Fix HeadJS asset loading.
Update bundle.
Merge remote-tracking branch 'upstream/master' into project-site