Bug 938905 - Add a message panel to the lock screen.
Integrate Where Is My Fox into the System app.
Integrate Where Is My Fox into the Settings app.
Add a very simple test app for WhereIsMyFox.
Use a retry alarm.
ACK every command.

If we don't do this, collapsed push notifications may prevent us
from seeing all commands.
Update key for passcode information on replies.
Guard against no passcode being provided.
Send has_passcode in all replies.
Group CSS for better readability.
Use actual names for command methods.
Enabled/Disabled need to go through l10n.
Use asyncStorage instead of localStorage.
Rename test app js file so it doesn't conflict with unit tests.
Don't set lockscreen message to undefined.
Add some properties to MockLockScreen.
Added paused attribute to MockAudio.

Unlike playing, paused is defined at:
http://www.whatwg.org/specs/web-apps/current-work/#dom-media-paused
Make MockLock return a request on set()
Make MockSettingsURL actually set its value on set().
Added MockDeviceStorage.