LunchtimeFXOS: Remove obj/ file that shouldn't have been checked in
LunchtimeFXOS: Add translation for "desert" meal type
LunchtimeFXOS: Refactor so that it's easy to display for any given date

This makes it easy to switch days to something other than today.
LunchtimeFXOS: Register for pageVisibility event (to refresh)

This event will be fired whenever we *change to* this page (that is, when
we 1: start the app. 2: switch to another app. 3: switch back to this app)

In other words, when we open the app, then reopen it the next day, it
should display that days lunch menu.
LunchtimeFXOS: Add footer
LunchtimeFXOS: Don't require to be a fullscreen app