Revert "Excluded all non "oauth_" parameters from the signature for multipart requests."

This reverts commit 178ad4d.

Author: esthereisner

RestSharp/Authenticators/OAuth1Authenticator.cs

@@ -169,32 +169,14 @@ private void AddOAuthData(IRestClient client, IRestRequest request, OAuthWorkflo
 			// http://tools.ietf.org/html/rfc5849#section-3.4.1
 			// if this change causes trouble we need to introduce a flag indicating the specific OAuth implementation level,
 			// or implement a seperate class for each OAuth version
-		    if (!request.AlwaysMultipartFormData && !request.Files.Any())
-		    {
-                foreach (var p in client.DefaultParameters.Where(p => p.Type == ParameterType.GetOrPost))
-                {
-                    parameters.Add(new WebPair(p.Name, p.Value.ToString()));
-                }
-                foreach (var p in request.Parameters.Where(p => p.Type == ParameterType.GetOrPost))
-                {
-                    parameters.Add(new WebPair(p.Name, p.Value.ToString()));
-                }
-		    }
-		    else
-		    {
-		        // if we are sending a multipart request, only the "oauth_" parameters should be included in the signature
-		        foreach (
-		            var p in
-		                client.DefaultParameters.Where(p => p.Type == ParameterType.GetOrPost && p.Name.StartsWith("oauth_")))
-		        {
-		            parameters.Add(new WebPair(p.Name, p.Value.ToString()));
-		        }
-		        foreach (
-		            var p in request.Parameters.Where(p => p.Type == ParameterType.GetOrPost && p.Name.StartsWith("oauth_")))
-		        {
-		            parameters.Add(new WebPair(p.Name, p.Value.ToString()));
-		        }
-		    }
+			foreach (var p in client.DefaultParameters.Where(p => p.Type == ParameterType.GetOrPost))
+			{
+				parameters.Add( new WebPair( p.Name, p.Value.ToString() ) );
+			}
+			foreach (var p in request.Parameters.Where(p => p.Type == ParameterType.GetOrPost))
+			{
+				parameters.Add(new WebPair(p.Name, p.Value.ToString()));
+			}
 
 			switch (Type)
 			{