Minor addition to RestaurantHomeActivityTest to verify that the correct
values are actually displayed.
Merge remote-tracking branch 'upstream/master'
Made some of the library classes more robust by adding null checks.
IllegalArgumentExceptions are thrown for the most part. Probably missed
a few.
Merge remote-tracking branch 'upstream/master'
Merge pull request #351 from espeo196/master

Added some null checks and slightly beefed up a test.