Fix memory leaks

PBGitCommitController.m

@@ -30,6 +30,11 @@
 	[cachedFilesController setSortDescriptors:[NSArray arrayWithObject:
 		[[NSSortDescriptor alloc] initWithKey:@"path" ascending:true]]];
 }
+- (void) removeView
+{
+	[webController closeView];
+	[super finalize];
+}
 
 - (void) setAmend:(BOOL)newAmend
 {

PBGitHistoryController.m

@@ -190,6 +190,10 @@
 - (void) removeView
 {
 	[webView close];
+	[commitController removeObserver:self forKeyPath:@"selection"];
+	[treeController removeObserver:self forKeyPath:@"selection"];
+	[repository removeObserver:self forKeyPath:@"currentBranch"];
+
 	[super removeView];
 }
 

PBGitRepository.m

@@ -375,4 +375,9 @@ NSString* PBGitRepositoryErrorDomain = @"GitXErrorDomain";
 	return nil;
 }
 
+- (void) finalize
+{
+	NSLog(@"Dealloc of repository");
+	[super finalize];
+}
 @end

PBGitWindowController.m

@@ -33,6 +33,11 @@
 	return self;
 }
 
+- (void)windowWillClose:(NSNotification *)notification
+{
+	[viewController removeView];
+}
+
 - (void) setSelectedViewIndex: (int) i
 {
 	selectedViewIndex = i;
@@ -70,6 +75,7 @@
 
 - (void)awakeFromNib
 {
+	[[self window] setDelegate:self];
 	[[self window] setAutorecalculatesContentBorderThickness:NO forEdge:NSMinYEdge];
 	[[self window] setContentBorderThickness:35.0f forEdge:NSMinYEdge];
 	[self showHistoryView:nil];

PBViewController.m

@@ -27,6 +27,7 @@
 
 - (void) removeView
 {
+	[self unbind:@"repository"];
 	[[self view] removeFromSuperview];	// remove the current view
 }
 

PBWebController.h

@@ -25,4 +25,5 @@
 @property (retain) id repository;
 
 - (WebScriptObject *) script;
+- (void) closeView;
 @end

PBWebController.m

@@ -35,6 +35,12 @@
 	return [view windowScriptObject];
 }
 
+- (void) closeView
+{
+	if (view)
+		[view close];
+}
+
 # pragma mark Delegate methods
 
 - (void) webView:(id) v didFinishLoadForFrame:(id) frame

PBWebHistoryController.m

@@ -108,4 +108,10 @@ contextMenuItemsForElement:(NSDictionary *)element
 	return [historyController valueForKeyPath:[@"repository.config." stringByAppendingString:config]];
 }
 
+- (void) finalize
+{
+	[historyController removeObserver:self forKeyPath:@"webCommit"];
+	[super finalize];
+}
+
 @end