Add module to stop built in formsauthenication module from hijacking 301 requests from inside servicestack api.
Check for null or empty referrer before redirecting after a logout
Propagated 'AlwaysSendBasicAuthHeader' settings from ServiceClientBase to the inner AsyncClient, following the same pattern as other properties.
Merge pull request #503 from Its-Tyson/async-client-always-send-auth-headers

Added AlwaysSendAuthHeader support to the async client methods.
Link to instead of copying existing src files
Changed Set/GetAppHost to Set/GetResolver
Merge pull request #499 from waynebrantley/master

stop formsauthenication from hijacking 301 requests
clean ServiceBase
Fix NullRef when starting/stopping HttpListener
Merge pull request #500 from aaronlerch/master

Fix for NullReferenceException if /auth/logout is entered into the browser directly
sanitize ServiceStackHandlerFactoryPath
Add new Async methods to IRestClientAsync
Fix metadata pages returning string, byte[], Stream or HttpWebResponses
Add support for string, byte[], Stream and HttpWebResponse in service clients sync/async apis
Add IsLocal to IHttpRequest
Make ISession and TUserSession easier to Mock
Make IHttpRequest IHttpResponse easier for testing
make Resolve the fallback for base.Request/Response
Use RNGCryptoServiceProvider to create true random session ids
INCR to v3.9.38