Added a mouseup handler to the polyline mouseMarker
Added a mouseup handler to the polyline mouseMarker

Removed mouseup handler from map because this doesn't
seem to be cleaned up. Overall, this just looks like it
fixes a typo where the proper assignment of the event
was misplaced.

eavidan-0/Leaflet.draw,ddproxy/Leaflet.draw,chasemgray/Leaflet.draw,riboher/Leaflet.draw,Karttakeskus/Leaflet.draw,riboher/Leaflet.draw,azavea/Leaflet.draw,arottersman/Leaflet.draw,Karttakeskus/Leaflet.draw,Leaflet/Leaflet.draw,azavea/Leaflet.draw,eavidan-0/Leaflet.draw,davenquinn/Leaflet.draw,ddproxy/Leaflet.draw,chasemgray/Leaflet.draw,davenquinn/Leaflet.draw,eavidan-0/Leaflet.draw,Agrimap/Leaflet.draw,Agrimap/Leaflet.draw,arottersman/Leaflet.draw,Leaflet/Leaflet.draw,Leaflet/Leaflet.draw,germanjoey/Leaflet.draw,manleyjster/Leaflet.draw,chasemgray/Leaflet.draw,germanjoey/Leaflet.draw,germanjoey/Leaflet.draw,riboher/Leaflet.draw,Agrimap/Leaflet.draw