Added mentor-marker.png to content\images.
Added mentor-marker.png to content\images.

This is for use on the organization home pages having the map displayed.

Patch by: Madhusudan.C.S
Reviewed by: Lennard de Rijk

--HG--
extra : convert_revision : svn%3A32761e7d-7263-4528-b7be-7235b26367ec/trunk%403014

rhyolight/nupic.son,rhyolight/nupic.son,rhyolight/nupic.son