[Board] new Sponsors page draft

[Jeff McKenna]

Hi Board, all,

As discussed in today's Board meeting, I've updated the Sponsors page to 
list our current sponsor (thinkWhere) and list all of the previous 
sponsors: http://www.osgeo.org/content/sponsorship/sponsors.html

This would have to be verified by the Treasurer.  I tried very hard to 
list all past OSGeo sponsors, I went through many old documents, as far 
back as 2006.  Please let me know if I made any mistakes.

I'd like to thank Alan Moore of thinkWhere (http://www.thinkwhere.com/) 
for their current sponsorship, and each and every past sponsor of OSGeo:

1Spatial
2ndQuadrant
ASTUN Technology
Autodesk
Boreal-Information Strategies (Borealis)
Camptocamp
First Base Solutions Inc.
GeoCat
INGRES
Institut Geographique National (IGN) France
Instituto Nacional de Pesquisas Espaciais (INPE) Brazil
Karttakeskus
LizardTech, A Celartem Company
Metaspatial
Ordnance Survey
PCI Geomatics
WhereGroup

-jeff