Lots of stylecop fixes.
More warning fixes.
Matured the OAuth 1 consumer signing handler a bit.
Removes OAuth 1 samples from the OAuth 2 site.
Removes ConsumerBase.PrepareAuthorizedRequestAsync methods.

HttpClient, full steam ahead.
Renames ApplyOAuthParameter method.
Adds the OAuth 1 consumer RSA-SHA1 signing message handler.
Adds the OAuth 1 consumer PLAINTEXT signing message handler.
StyleCop fixes.
OAuth 1.0 Consumers are now *much* simpler, entirely avoiding channels.

Build breaks in other projects, however.
Fixes some OAuth 1 build breaks.
Fixes NullReferenceException in MessageValidationBindingElement.
Adds support for symmetric key signing and encryption of access tokens.

This targets the common scenario where authorization servers and resource servers are actually on the same web application, and asymmetric cryptography is overkill and requires extra setup.
Fixes basic auth creation.
Adds a WebAPI sample that is its own authorization server and resource server.
Merge branch 'httpclient' into OAuthSimple
Fixes build breaks everywhere exception DNOA.AspNet.
Fixes build breaks in DNOA.AspNet
Fixes some recent regressions to get twitter.aspx working.
Applied similar redirect fixes elsewhere.