Merge pull request #54 from paulbatum/master

Ensure all types in the project honor the XAMARIN_AUTH_INTERNAL flag
PublicAccessors

Expose constructor arguments as public properties
Add app name/identifier to test project
Merge pull request #60 from iouri-s/PublicAccessors

PublicAccessors
Deploy flag for iOS test project
Move RedirectUrl property down from OAuth2 to WebRedirect
Expose properties on OAuth1Authenticator

OAuth2Authenticator/WebRedirectAuthenticator gained public properties
exposing the parameters passed into the ctor. This is simply making
OAuth1Authenticator consistent, plus ctor tests.
renaming namespaces