Various fixes.

AppKit/CPMenuItem.j

@@ -230,6 +230,14 @@
     return _title;
 }
 
+/*!
+    Set's the item's text color
+*/
+- (void)setTextColor:(CPString)aColor
+{
+    //FIXME IMPLEMENT
+}
+
 /*!
     Sets the font for the text of this menu item
     @param aFont the font for the menu item

AppKit/CPPopUpButton.j

@@ -138,6 +138,15 @@ var CPPopUpButtonArrowsImage = nil;
 }
 
 // Inserting and Deleting Items
+
+/*!
+    Adds a new menu item using a CPMenuItem object.
+*/
+- (void)addItem:(CPMenuItem)anItem
+{
+    [_menu addItem:anItem];
+}
+
 /*!
     Adds a new menu item with the specified title.
     @param the new menu item's tite

Foundation/CPArray.j

@@ -51,7 +51,7 @@
     if (++_index >= [_array count])
         return nil;
 
-    return _array[_index];
+    return [_array objectAtIndex:_index];
 }
 
 @end
@@ -81,7 +81,7 @@
     if (--_index < 0)
         return nil;
 
-    return _array[_index];
+    return [_array objectAtIndex:_index];
 }
 
 @end
@@ -735,6 +735,14 @@
     return sorted;
 }
 
+/*!
+    Return a copy of the receiver sorted using the function passed into the first parameter.
+*/
+- (CPArray)sortedArrayUsingFunction:(Function)aFunction
+{
+    return [self sortedArrayUsingFunction:aFunction context:nil];
+}
+
 /*!
     Returns an array in which the objects are ordered according
     to a sort with <code>aFunction</code>. This invokes