CornerPinSurface has a huge bug

[clankill3r]

https://github.com/davidbouchard/keystone/blob/master/src/deadpixel/keystone/CornerPinSurface.java#L53

The following values can not be static!

// Daniel Wiedeman: made them public static
public static int TL; // top left
public static int TR; // top right
public static int BL; // bottom left
public static int BR; // bottom right

Let's say I create a CornerPinSurface with a low resolution and after that I create a second CornerPinSurface with a high resolution. TL, TR, BL and BR are overwritten!
They should just be public, nothing more.