Implementation of Object Mapping 2.0 design:

* Removed RestKit from inheritance hierarchy
  * Mappings are implemented as concrete classes
  * Mapper is much more flexible & powerful
  * Much more robust error handling
  * Serialization is reimplemented as an object mapping operation
  * Added ability to serialize to JSON natively
  * Reworked Core Data integration
  * Simplified the codebase substantially

Code/ObjectMapping/RKErrorMessage.m

@@ -0,0 +1,25 @@
+//
+//  RKError.m
+//  RestKit
+//
+//  Created by Jeremy Ellison on 5/10/11.
+//  Copyright 2011 Two Toasters. All rights reserved.
+//
+
+#import "RKErrorMessage.h"
+
+
+@implementation RKErrorMessage
+
+@synthesize errorMessage = _errorMessage;
+
+- (void)dealloc {
+    [_errorMessage release];
+    [super dealloc];
+}
+
+- (NSString*)description {
+    return _errorMessage;
+}
+
+@end