Remove impossible weak references on 10.7.

Author: tiennou

Classes/Controllers/PBRefController.h

@@ -16,7 +16,7 @@
 @class PBRefMenuItem;
 
 @interface PBRefController : NSObject <PBRefContextDelegate> {
-	IBOutlet __weak PBGitHistoryController *historyController;
+	IBOutlet PBGitHistoryController *historyController;
 	IBOutlet NSArrayController *commitController;
 	IBOutlet PBCommitList *commitList;
 

Classes/Controllers/PBRefController.m

@@ -458,4 +458,8 @@ - (void)acceptDropInfoAlertDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnC
         [PBGitDefaults suppressDialogWarningForDialog:kDialogAcceptDroppedRef];
 }
 
+- (void)dealloc {
+    historyController = nil;
+}
+
 @end

Classes/Controllers/PBViewController.h

@@ -12,7 +12,7 @@
 
 @interface PBViewController : NSViewController {
 	__weak PBGitRepository *repository;
-	__weak PBGitWindowController *superController;
+	PBGitWindowController *superController;
 
 	NSString *status;
 	BOOL isBusy;

Classes/Controllers/PBViewController.m

@@ -27,6 +27,10 @@ - (id)initWithRepository:(PBGitRepository *)theRepository superController:(PBGit
 	return self;
 }
 
+- (void)dealloc {
+    superController = nil;
+}
+
 - (void)closeView
 {
 	[self unbind:@"repository"];