Remove extra error messages when attribute is blank
Update error message when reviewing group is blank
Update test in user spec to check error messages
Update review spec error checking to look at messages
Update invitation validation to give higher precendence to invalid emails
Password Reset now checks for blank email addresses
Update reviewing group creation to show success message
Update to self assessment validations to require response text
Merge pull request #93 from bsmith3541/updateErrorMessages

Update error messages #25