Thread charts and VP3

The first (free) update of StitchBuddy changes the handling of thread colors: The color picker of Mac OS X is used to select colors (it was just a list of items before), and I updated the internal representation of colors: It’s possible to change the thread charts of a design, and even EXP/DST files can be colorized. In addition designs can be rotated by any angle,q and Pfaff’s VP3 embroidery format can be read, now.

Both plugins are updated as well to support the new thread colors and VP3 embroideries.