Join: Use empty values for select options that aren't real options.
Update README to reference using "grunt deploy"
Fix typo in README
Link directly to contribute.jquery.org docs in README to explain build instructions.
README: change jquery-wp-content link to <code><a></code> for better formatting in GitHub
README: just give up on trying to wrap <code> around link to jquery-wp-content
Placeholder for membership thank you page.
Join: Add markup for error notifications.
README: Added instructions for Stripe integration.
README: Document required plan ids.
Join: Split name into first name and last name fields.