Make sign up select fields have empty defaults AND make them have Bootstrap styling.
Merge pull request #137 from bgrayless/set_sign_up_selects_to_empty_default

Signup form improvements
Auto-play main video when the modal pops up
our -> your typo
fix smushing on medium screens
remove signed out successfully message
Allow indexing of public site in search engines
fix the weird horizontal scrolling to empty space
Merge pull request #138 from adamdruppe/autoplay

Auto-play main video when the modal pops up
Merge pull request #139 from adamdruppe/text_changes

Minor post release public site fixes