Remove Facebook object descriptions. Issue #356.
Links up all of the buttons on the About page (Except the donate givlet button).
Creates a /tags/ page in the v2 style.
Creates a /badges/ page in the v2 style.
Removes red style on the no-answer prompt for questions that have no answers.
Changes answer card to show answerer's headline instead of answerer's about description.
Tweaks to v1 email language.
Improve call to action when the question list is empty.
Merge branch 'hotfix-templatesandcontent'