Added error to method signature and used RKLogError if the errror isn't nil

Code/Network/RKResponse.h

@@ -92,7 +92,7 @@
 /**
  * Return the response body parsed as JSON into an object
  */
-- (id)parsedBody;
+- (id)parsedBody:(NSError*)error;
 
 /**
  * Will determine if there is an error object and use it's localized message

Code/Network/RKResponse.m

@@ -149,12 +149,11 @@ extern NSString* cacheURLKey;
     return nil;
 }
 
-- (id)parsedBody {
+- (id)parsedBody:(NSError*)error {
     id<RKParser> parser = [[RKParserRegistry sharedRegistry] parserForMIMEType:[self contentType]];
-    NSError *error;
     id object = [parser objectFromString:[self bodyAsString] error:&error];
     if (error == nil) {
-        // TODO throw parse error?
+        RKLogError(@"Unable to parse response body: %@", [error localizedDescription]);
         return nil;
     }
     return object;