Add old display name to update notification

Add old display name to payload of update notification when it is
changed, so the notification consumer could know the display name is
changed which is the same as task_state.
Fixes bug 1191612

Change-Id: I47b8ad8ffc2988212b59fb141e83b8110994b8da
Imported Translations from Transifex

Change-Id: I451c6702924f36b91aa1177fc22c2815367669de
Merge "Imported Translations from Transifex"
Merge "Add old display name to update notification"
Merge remote-tracking branch 'm_src_repo/citrix-fixes' into build-temp