TouchDraw 1.2.4

New Features
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   * Added SVG export feature.
   * Added support for iOS 4.2 multi-tasking.
   
Useability Enhancements
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   * Improved the process to delete a drawing which removes any ambiguity.
   
Bug Fixes
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   * Fixed an issue where drawing a freehand curve with a decoration wouldn't draw the curve during creation.
   * Fixed an issue that prevented the libraries from being installed in some cases.
   * Fixed an issue that caused rounded rectangles to not be converted to stencils correctly. 
   * Fixed an issue that could cause a crash when decorating a line when exporting a drawing.                   
   * Fixed an issue rendering line decorations after changing units of measure.
   * Fixed an issue that could cause a crash when exporting an image with the grid enabled.  
   * Fixed an issue that could cause a crash when creating some stencils.
   * Improved the autosave feature to work better in low memory situations.