Keep message sheets because setting them as delegates/responders doesn't retain them under ARC.

For brotherbard#5 we need to run under Leaks to detect stuff like this.

Author: rowanj

PBGitXMessageSheet.m

@@ -19,7 +19,7 @@ - (void)resizeWindow;
 
 @end
 
-
+NSMutableArray* allMessageSheets = nil;
 
 @implementation PBGitXMessageSheet
 
@@ -66,6 +66,12 @@ - (void)beginMessageSheetForWindow:(NSWindow *)parentWindow withMessageText:(NSS
 	[self resizeWindow];
 
 	[NSApp beginSheet:[self window] modalForWindow:parentWindow modalDelegate:self didEndSelector:nil contextInfo:NULL];
+	
+	if (!allMessageSheets)
+	{
+		allMessageSheets = [[NSMutableArray alloc] init];
+	}
+	[allMessageSheets addObject:self];
 }
 
 

PBRemoteProgressSheet.m

@@ -20,7 +20,7 @@
 NSString * const kGitXProgressErrorDescription   = @"PBGitXProgressErrorDescription";
 NSString * const kGitXProgressErrorInfo          = @"PBGitXProgressErrorInfo";
 
-
+NSMutableArray* allProgressSheets = nil;
 
 @interface PBRemoteProgressSheet ()
 
@@ -110,6 +110,12 @@ - (void) beginRemoteProgressSheetForArguments:(NSArray *)args title:(NSString *)
 	taskTimer = [NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(checkTask:) userInfo:nil repeats:YES];
 
 	[gitTask launch];
+	
+	if (!allProgressSheets)
+	{
+		allProgressSheets = [[NSMutableArray alloc] init];
+	}
+	[allProgressSheets addObject:self];
 }