Massive refactoring

Remove refresh method

Update constant names

Remove singleton

Fix undone refactor typos

Remove AFNetworking dependency

Remove AFNetworking

Update example without singleton

Some features are left out at the moment

Add new GithubStatus object

Add NSDictionary NSNull remover

Completely remake API

Update example for new API

Massive refactoring

Remove refresh method

Update constant names

Remove singleton

Fix undone refactor typos

Remove AFNetworking dependency

Remove AFNetworking

Update example without singleton

Some features are left out at the moment

Add new GithubStatus object

Add NSDictionary NSNull remover

Completely remake API

Update example for new API

User NSUserDefaults for last checked date