added sharethis widget

if it looks funky or works weird, we can roll our own widget. but this
is 1000x faster and easier to do. test -> iterate!
Merge pull request #776 from mocha/dev

added sharethis widget
Merge pull request #775 from rdodev/render-blink-fix

testing rendering issue fix
Merge remote-tracking branch 'upstream/dev' into render-blink-fix
made url to Google Fonts protocol agnostic. Moved share js to blog post page.