#407 general: fail gracefully when user selected not found
Originally created by: sf-overlords
Created by: noostendorp
Created date: 2010-05-19 14:28:38.497000
Assigned to:nobody
As a user, when I try and add a new user to my project, but misspell the name or add a user that doesn't exist, after I submit the form I should get an error message formatted in the status box that tells me why the user was not added.