fix some bugs, change instructor navigation
Merge commit '5061dc90771b50f951a6cc50351efcd6303428a4' into wdn

* commit '5061dc90771b50f951a6cc50351efcd6303428a4':
  Should fix Procfile
  And I'm an idiot
  Pg
  Disable pry in production
  Add Procfile
  Set ruby version
  Add rails12factor
change the first sign up user as admin
New WDN stuff
Trying Sendgrid
Merge branch 'master' of github.com:Rumel/UNL-iLab