Protege 2.1 Beta update (build 228)

There's a new beta build available on our Web site: 
http://protege.stanford.edu/download/prerelease/index.html

Changes
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1. Added additional configuration options to the Graph Widget that allow 
users to control the snap-to-grid functionality on the canvas.  The new 
options are accessible from the View Properties tab in the widget 
configuration dialog.

2. Fixed a class loader problem that affected the RDF Backend.