Authentication

[SunburnedGoose]

The mobile client will need to know if a user is logged into bungie.net. If not, then the state of the application should be preserved while a login flow occurs with Bungie.net. There may be special cases where the user doesn't have a bungie.net credential, or they do have credentials but have never played Destiny for example.

• InAppBrowser throws exceptions if there is more than one open. #6 Manage access to InAppBrowser
• Custom Http to interact with Bungie.net. #7 Custom Http to interact with Bungie.net.