Allow translator to control the word order (update extra spec)

Change-Id: Ia7aeeef0e8cc957a9167cdfe89f12f3c327a52b8
Closes-Bug: #1291513
Fix username's maximum length to match the backend

when create a user, we can input length more 255 character,
but it will report a error 'User name should not be greater
than 255 characters (HTTP 400)'.

Change-Id: Ib2a3d2f6783e1c107d9a2cf87877442a9171480d
Closes-bug:#1291216
Merge "Allow translator to control the word order (update extra spec)"
Merge "Fix username's maximum length to match the backend"