CPSlider behavior is inverted in vertical mode

In vertical mode, when at maximum value, CPSlider's knob is at the bottom and when at minimum value the knob is at the top. Here's a quick and dirty workaround:

@implementation InvertedSlider : CPSlider
{
}

- (void)mySetValue:(id)aValue
{
    [self setObjectValue:[self maxValue] - aValue];
}

- (id)myValue
{
    return [self maxValue] - [self objectValue];
}

@end

A little crunched for time at the moment - but will work on a bug fix in the next week or two.