Fix issues pointed out by @fredkiefer

ChangeLog

@@ -7,7 +7,7 @@
 	* Source/GSControllerTreeProxy.[hm]: Proxy class
 	for NSTreeController, a subclass of NSTreeNode.
 	* Source/GSThemeDrawing.m: Optimize code a bit and
-	add changes for binfings.
+	add changes for bindings.
 	* Source/GSXib5KeyedUnarchiver.m: Add support for new keys
 	on NSTreeController.
 	* Source/NSKeyValueBinding.m: Add new methods to

Source/GSControllerTreeProxy.m

@@ -81,7 +81,7 @@
   return [self children];
 }
 
-- (NSArray *) mutableChildNodes
+- (NSMutableArray *) mutableChildNodes
 {
   return [self children];
 }

Source/NSControl.m

@@ -122,6 +122,7 @@ static NSNotificationCenter *nc;
 
 - (void) dealloc
 {
+  [GSKeyValueBinding unbindAllForObject: self];
   RELEASE(_cell);
   [super dealloc];
 }

Source/NSKeyValueBinding.m

@@ -192,11 +192,11 @@ void GSBindingInvokeAction(NSString *targetKey, NSString *argumentKey,
   if (!objectTable)
     return nil;
 
-  NSDebugLog(@"+++ called with %@, %@", binding, anObject);
+  NSDebugLLog(@"NSBinding", @"+++ called with %@, %@", binding, anObject);
   [bindingLock lock];
   bindings = (NSMutableDictionary *)NSMapGet(objectTable, (void *)anObject);
 
-  NSDebugLog(@"+++ Bindings found for %@ => %@", anObject, bindings);
+  NSDebugLLog(@"NSBinding", @"+++ Bindings found for %@ => %@", anObject, bindings);
   if (bindings != nil)
     {
       theBinding = (GSKeyValueBinding*)[bindings objectForKey: binding];

Source/NSTableView.m

@@ -2084,8 +2084,6 @@ static void computeNewSelection
 {
   [self abortEditing];
 
-  [GSKeyValueBinding unbindAllForObject: self];
-
   RELEASE (_gridColor);
   RELEASE (_backgroundColor);
   RELEASE (_tableColumns);

Source/NSTreeNode.m

@@ -47,7 +47,6 @@
 
 - (void) _setParentNode: (NSTreeNode*)parentNode
 {
-  NSLog(@"parentNode = %@", parentNode);
   _parentNode = parentNode;
 }