fix issue #142, POST,PUT and PATCH should use form encoded date not the other way around

Author: toto

Sources/OAuth2Client/NXOAuth2Request.m

@@ -157,7 +157,7 @@ - (void)applyParameters:(NSDictionary *)someParameters onRequest:(NSMutableURLRe
     if (!someParameters) return;
 
     NSString *httpMethod = [aRequest HTTPMethod];
-    if ([@[@"POST",@"PUT",@"PATCH"] containsObject: [httpMethod uppercaseString]]) {
+    if (![@[@"POST",@"PUT",@"PATCH"] containsObject: [httpMethod uppercaseString]]) {
         aRequest.URL = [aRequest.URL nxoauth2_URLByAddingParameters:someParameters];
     } else {
         NSInputStream *postBodyStream = [[NXOAuth2PostBodyStream alloc] initWithParameters:parameters];