Authorize all teams to admin: fix 500 error on showing team page.
Created by: babatakao
500 error was occured in the following steps:
- user1 creates new team "team1".
- Assign team1 to project1.
- Sign in as admin. This admin is not a member of team1.
- Open project1 team setting page (/project1/team).
- Click "team1" link in "Assigned teams" area.
- 500 error.
Fixed this issue.