Move off of macosxinternal sdk

This moves kordophone off of using the internal SDK and switches to using class dumped headers instead.

kordophone/Bridge/Operations/MBIMMessagesListOperation.m

@@ -10,7 +10,7 @@
 #import "MBIMHTTPUtilities.h"
 #import "IMMessageItem+Encoded.h"
 
-#import <IMCore/IMCore.h>
+#import "IMCore_ClassDump.h"
 
 @implementation MBIMMessagesListOperation
 
@@ -35,7 +35,7 @@
         
         __block NSMutableArray *messages = [NSMutableArray array];
         dispatch_sync([[self class] sharedIMAccessQueue], ^{
-            IMChat *chat = [sChatRegistry existingChatWithGUID:guid];
+            IMChat *chat = [[IMChatRegistry sharedInstance] existingChatWithGUID:guid];
             if (!chat) {
                 MBIMLogInfo(@"Chat with guid: %@ not found", guid);
                 response = [[HTTPErrorResponse alloc] initWithErrorCode:500];