Added makeObjectsPerformSelector:withObjects:.

Reviewed by me.

AppKit/CPMenu.j

@@ -1050,7 +1050,7 @@ var STICKY_TIME_INTERVAL        = 500,
     [_menuView setFont:aFont];
 }
 
-- (void)setBackgroundStyle:(_CPMenuWindowBackgroundStyle)aBackgroundStyle
++ (CPColor)backgroundColorForBackgroundStyle:(_CPMenuWindowBackgroundStyle)aBackgroundStyle
 {
     var color = _CPMenuWindowBackgroundColors[aBackgroundStyle];
     
@@ -1092,8 +1092,13 @@ var STICKY_TIME_INTERVAL        = 500,
                 
         _CPMenuWindowBackgroundColors[aBackgroundStyle] = color;
     }
-    
-    [self setBackgroundColor:color];
+
+    return color;
+}
+
+- (void)setBackgroundStyle:(_CPMenuWindowBackgroundStyle)aBackgroundStyle
+{
+    [self setBackgroundColor:[[self class] backgroundColorForBackgroundStyle:aBackgroundStyle]];
 }
 
 - (void)setMenu:(CPMenu)aMenu

Foundation/CPArray.j

@@ -602,6 +602,23 @@
         objj_msgSend(self[index], aSelector, anObject);
 }
 
+- (void)makeObjectsPerformSelector:(SEL)aSelector withObjects:(CPArray)objects
+{
+    if (!aSelector)
+        [CPException raise:CPInvalidArgumentException reason:"makeObjectsPerformSelector:withObjects: 'aSelector' can't be nil"];
+
+    var index = 0,
+        count = length,
+        argumentsArray = [nil, aSelector].concat(objects || []);
+
+    for(; index < count; ++index)
+    {
+        argumentsArray[0] = self[index];
+        objj_msgSend.apply(this, argumentsArray);
+    }
+}
+
+
 // Comparing arrays
 /*!
     Returns the first object found in the receiver (starting at index 0) which is present in the