- Created a new "sync debug" pref screen to hold the Fxa, Sync, and Push
server override prefs. They were taking a lot of screen space on the
top-level settings menu as individual items
- Added button on that screen to quit FF which is needed to apply the
changes.
- This is definitely not the nicest UI, but hopefully QA can just
override the prefs once save them in an emulator and never have to
go back to this screen.
- I do think this is a nicer UI than before, where FF would quit
after a change to any of the prefs. That forces you to restart FF
3 times if you wanted to override all 3 server URLs.
fb0ebe4eec