PBViewController.superController accessor

PBViewController.h

@@ -20,6 +20,7 @@
 }
 
 @property (readonly) __weak PBGitRepository *repository;
+@property (readonly) __weak PBGitWindowController *superController;
 @property(copy) NSString *status;
 @property(assign) BOOL isBusy;
 

PBViewController.m

@@ -12,6 +12,7 @@
 @implementation PBViewController
 
 @synthesize repository;
+@synthesize superController;
 @synthesize status;
 @synthesize isBusy;