Added SettingsView
Added RegisterView
Added RestSharp to project
Added RegistrationService
Added: Registration handling in RegisterViewModel, Json.net
Added login view
Added Login() to RegistrationService
added configuration entity
Added configuration service
Small refactoring
added logout button
Major changes in RegistrationService
Added: logging out; "keep me logged in" option
Merge pull request #6 from blstream/dev-login

Dev login
Merge pull request #5 from blstream/dev

Dev