CCControlPotentiometer doesn't honor anchorPoint

[spiripicchio]

I'm using CCControlButton, CCControlSlider, CCControlSwitch and CCControlPotentiometer instances extensively in my debug console for my game. It looks like the anchorPoint for CCControlPotentiometer is completely ignored and it's stuck at (0.5, 0.5). I use the same code to build all the different controls and I'm setting a custom anchorPoint to all the CCControls and everything works except for CCControlPotentiometer.

Fantastic library anyway! Keep up the excellent work!