TouchDraw 1.3.3

Bug Fixes
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   * Fixed an issue that could cause a crash related to checking if a figure is filled in rare occasions.
   * Fixed an issue that could cause a crash when adding certain figures into a library.
   * Fixed an issue that could cause an error during redrawing the canvas.
   * Fixed an issue when exporting Visio diagrams that impacted Visio 2007 and Visio 2010 users.