Description of problem:
In Language Team view, "Find Users To Add" dialog:
When at least one of the roles (Translator, Reviewer, Coordinator) are ticked, the operator expected that the members he/she touched are automatically selected and will be added after "Add Selected" is clicked.


Version-Release number of selected component (if applicable):
Zanata version 3.1-SNAPSHOT (20130820-1237)

How reproducible:
Always

Steps to Reproduce:
1. Login as language coordinator 
2. Click languages -> LanguageYouCoordinate
3. Click Add Team Member
4. Enter username you want (assume it is USERNAME) to add in user search entry
5. Tick checkbox Translator for USERNAME
6. Click "Add Selected"

Actual results:
At Step 5, USERNAME is not selected.
At Step 6, USERNAME is not added as member.

Expected results:
At Step 5, USERNAME should be selected.
At Step 6, USERNAME should be added as member.


Additional info: