Changed sprints-icon.png to Sprints-Icon.png
Changed sprints-icon.png to Sprints-Icon.png

njl/pycon,PyCon/pycon,Diwahars/pycon,njl/pycon,Diwahars/pycon,PyCon/pycon,Diwahars/pycon,njl/pycon,PyCon/pycon,Diwahars/pycon,njl/pycon,PyCon/pycon