updated default favicon to sharper Yale favicon
fixed escaped HTML in App Configs form
moved favicon for Rails 4
improved send_reservations_notes task
updated changelog with email fix
added checked_in scope (equal to returned)
added has_notes reservation scope
added ApplicationHelper to AdminMailer
added ApplicationHelper to UserMailer
fixed reservation notes email - double quoted string and url vs path
fixed reservation note email to not break for checked out reservations
added markdown to reservation notes emails
updated scopes in mailman.rake and fixed weird spacing
added hostname config back into setup_mail.rb initializer
changed default hostname to 0.0.0.0:3000
removed email link host setting from environment files
added explanatory comment to setup_mail.rb
updated README instructions for email links
removed host config from test.rb
added #868 to CHANGELOG again