Living Social Exercise by Jeremy Assayah

Hi,
I just finished the living social exercise. I spent a little bit more than 3 hours for the exercise. I wanted to add some Unit tests for the data model but also wanted to stay in the allocated time frame.

Here is how I can improve the code if I have more time:
1) Create unit tests for data model
2) Create automation tests using Appium for the UI
3) Using a webview instead of browser
4) Caching the image (for a certain period of time) instead of re-fetching them all the time