[Foss4g2010] Updated metrics

[Cameron Shorter]

I've added some excel magic to the foss4g spreadsheets and now have the 
foss4g2010 registration graphs showing breakdown by local/international 
registrations.

-- 
Cameron Shorter
Geospatial Director
Tel: +61 (0)2 8570 5050
Mob: +61 (0)419 142 254

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