Add imperial support when drawing polylines. refs 169
Rename function for calculating distance so it is more general sounding. refs #169
Add imperial option to the polygon drawing handler. fixes #169
Add metric option to the PolylineOptions and PolygonOptions.
Update changelog
Update build
Fixing issue that broke polygon creation when showArea = flase or allowIntersection = true.
Update build.
DrawFeature fires created event!