add OSM OAuth authentication

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#2 add OSM OAuth authentication

Status: open

Owner: nobody

Labels: None

Priority: 1

Updated: 2010-02-09

Created: 2010-02-09

Private: No

Users should be able to use the openstreetmap authentication:
http://wiki.openstreetmap.org/wiki/OAuth

They should be able to attach this to their account or use it for registering with us.