4. Execute `GET` request with `http://gitlab.faifly.com/ios-general/ios-tutorial/uploads/75727472327ca7b210bb1d904438a2d7/tutorial.json` URL. You should see JSON with a list of organizations.
4. Execute `GET` request with `http://gitlab.faifly.com/ios-general/ios-tutorial/uploads/ffffec34fa4a727922bb1e09cc24b21d/tutorial.json` URL. You should see JSON with a list of organizations.
5. Create a new branch from develop called feature/basic_networking.
6. Create a new class called `RequestManager`, which is subclass of `NSObject`.
7. Implement `fetchOrganizations` static method, which accepts one argument - a closure (block) with a single parameter - `[String : AnyObject]`. It should send a `GET` request to a URL specified above and return the response with the help of the closure.