Add new admin
View lecture suggestions
Fix logo width
Update seed file
Update lectures controller
Show lecture suggestions on backend
Remove useless columns
Add comments to attendee/vendor index
Fix permission denied notice
Show attendee comments
Make attendee instance var in IPN
Add payment notice to form
Remove domain from email
Add heroku url
Fix seed file
Change payment model
Send email after attendee pays
Merge pull request #1 from HunterMeyer/master

After an attendee has paid (w/ PayPal) mark them as paid and send email.