added flash:success to review#sendemail and changed some flash:notices to more appropriate colors
added tests for review#sendemail
Merge pull request #49 from valerie-roske/mailer-fixes

#369: Valerie & Brandon: Mailer fixes
Create four reviews on creation of new AC
- Create four reviews on creation of new AC
- Added functional test to check success message
- ACs without start dates don't get reviews created
Auto-create reviews when existing user becomes AC
- auto-create reviews when an existing user is made an ac
- added tests to ensure prevent creating reviews for existing acs
- adjust feedback deadline to 2 days before review
- add help text on user admin form to indicate reviews will be created for new ACs
Send email to AC when reviews autocreated
- Send summary email when reviews are automatically created
- Refactor review auto-generation to static method in Review class
Refactor user controller and spec
- Refactor user controller spec
- Refactor user controller to make review creation on user edit clearer
- Fix user controller bug where response message would sometimes say
  reviews had been created (when they correctly hadn't)
Change the wording in the reviews_creation email a smidge
Merge pull request #50 from ajablonski/createReviews

#315 - Auto-create reviews for new ACs