TouchDraw 1.4.5

New Features
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   * The center of rotation for a shape/figure can now be changed.
   * Added a library of shapes for diagramming networks.
Usability Enhancements
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   * Improved the accuracy of the logic to insert a handle into a path.
   * Significantly improved the performance of the DropBox integration.
   * Changed the "font size" editor to a +/- control as opposed to a slider.   
   * Changed the "stroke size" editor to a +/- control as opposed to a slider.   
 
Bug Fixes
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   * Fixed a potential crash issue with manually moving connected lines.
   * Fixed a bug that could prevent exporting to iTunes or the Cloud from working.
   * Fixed a bug exporting polygons to Visio where they were centered in the wrong position.
   * Fixed an issue where the "ungroup" menu item wouldn't show in some situations.
   * Fixed an issue that could lead to multiple drawings being selected in the drawings chooser.
   * Fixed an issue importing SVG <polyline> elements where the transformations weren't being applied to them.  
   * Fixed an issue importing SVG <text> elements where the "text-anchor" style element wasn't previously handled.
   * Fixed an issue importing SVG <path> elements with vertical line commands.
   * Fixed an issue importing SVG <polyline> elements where the points weren't transformed.
   * Fixed an issue zooming to fit and exporting drawings that have empty layers.
   * Fixed an issue where grouping some items could cause the order to be messed up.