Fixed [CCScheduler timersForTarget:] to not include invalidated timers.

Former-commit-id: b442d66

Author: slembcke

cocos2d-ui-tests/tests/CCSchedulerTest.m

@@ -41,6 +41,10 @@ -(void)onEnter
 	[super onEnter];
 
 	[self schedule:@selector(after:) interval:2.0];
+	
+	// Unschedule it and reschedule it to check for rescheduling issues.
+	[self unschedule:@selector(after:)];
+	[self schedule:@selector(after:) interval:1.0];
 }
 
 -(void)update:(CCTime)delta

cocos2d/CCScheduler.m

@@ -504,7 +504,7 @@ -(NSArray *)timersForTarget:(NSObject<CCSchedulerTarget> *)target
 
 	NSMutableArray *arr = [NSMutableArray array];
 	for(CCTimer *timer = scheduledTarget.timers; timer; timer = timer.next){
-		[arr addObject:timer];
+		if(!timer.invalid) [arr addObject:timer];
 	}
 
 	return arr;