OWIN: #87 Make IHttpAuthenticationFeature.Handler not throw.
#89 - Rename OnRequestAborted to RequestAborted.
#69 Make auth APIs use IEnumerable instead of IList.
#88 Rename IHttpOpaqueUpgradeFeature to IHttpUpgradeFeature.
#91 Provide a default constructor for DefaultHttpContext.
#66 Add response writing extensions.
Fix rebase issue in tests.
Fix mispelled class name.
#96 Enable Owin->AspNet WebSockets.
#96 Enable AspNet->Owin WebSockets.
OWIN WebSockets: Cleanup, docs, extension methods.
Renamed configurations to frameworks in project.json
Reacting to System.Collections version change
Reacting to System.Collections version change
Reverting version change to ComponentModel
#103 Fix ambigious Keys property on IHeaderDictionary.
Fix test.
Fix test...