add multiple teachers in textarea
added short circuit one-liner
put in some of Sam's changes
Adding tentative authorization. To be tested when question and response models are fleshed out
take out UserMailer
Sam does some stuff
Merge pull request #41 from calblueprint/alli/authorization

Tentative authorization
Merge pull request #39 from calblueprint/add-many-emails

Add many emails
fixing merge conflict
Merge branch 'master' of https://github.com/calblueprint/roots-of-success into vincent-teacher-classroom