Change tabs
[#57934298] Add gson lib and RESTClient code.
[#57934298] Add gson json parsing.
[#57934298] Serialize the json data that needs to go to fragments.
[#57934298] Implement an async task that fetches the data from the server and creates the tabs appropriately.
[#57934298] Use the feed content from the API inside the app
[#57934298] Load map content from API data
[#57934298] Prepare about page to load data from API