Initialized the solution and projects.

Configured build settings, StyleCop settings and Code Analysis dictionary.
Suppressed the 1591 warning (missing XML comments) on the Windows Store App project since some auto-generated code is not compliant with this warning.
Added the API context abstraction and default implementation (JSON-based Web API).
Added the base API and authentication API implementations.
Added the information API.
Fixed 2 Code Analysis warnings in the Core project.
Added views for the authentication and information core APIs
Added the DSM information API.
Added the DSM system API.
Set the minimum Windows Phone target from 7 to 7.5 in the portable libraries.
Installed the Microsoft.Bcl.Async NuGet package to enable the async / await pattern in portable libraries.
Switched the existing APIs to the async / await model.
Added the encryption information API.
Added the DSM User API (with only the "list" operation)
Added the DSM Share API (with only the "list" operation)
Reordered the declaration of the APIs ViewModels in the Main ViewModel and created a list view of the APIs last responses.
Added the DSM Service API (with only the "list" operation)
Added the DSM Package API (with only the "list" operation)
Fixed the documentation in the DSM Package API.
Added the DSM Group API (with only the "list" operation)