Set date to always be date gem was built
Also fixed rake and rspec dependency versions while I was in there. I'm not sure where I saw the '~> 0' format from, but those versions were not working with my tests, so I replaced version 0 with the versions I have actually tested against and can run with my gem.
Clicked through the mobile app inside an emulator for a while and gathered all the endpoints it hit so I could build functions for them.
Also went ahead and replaced some of the less useful tests with slightly more useful ones. There's a lot more validation I could be doing, but this at least ensures all implemented methods are run once with all available arguments specified.
