Ensure a number is a number.

Export.lua

@@ -45,7 +45,7 @@ function LuaExportActivityNextEvent(t)
 	    print(v.Type)  -- add this line for debugging purposes
 	    local objectType = "unknown"
 	    objectType = type(v.Type)
-	    json = json .. string.format('{"age_in_seconds":"%.1f", "unit_name":"%s", "group_name":"%s", "name":"%s", "latitude":%f, "longitude":%f, "altitude_in_feet":%f, "heading_in_rads":%f, "pitch_in_rads":%f, "bank_in_rads":%f, "coalition":"%s", "type":"%s"},', t, v.UnitName, v.GroupName, v.Name, v.LatLongAlt.Lat, v.LatLongAlt.Long, v.LatLongAlt.Alt, v.Heading, v.Pitch, v.Bank, v.Coalition, objectType )
+	    json = json .. string.format('{"age_in_seconds": %.1f, "unit_name":"%s", "group_name":"%s", "name":"%s", "latitude":%f, "longitude":%f, "altitude_in_feet":%f, "heading_in_rads":%f, "pitch_in_rads":%f, "bank_in_rads":%f, "coalition":"%s", "type":"%s"},', t, v.UnitName, v.GroupName, v.Name, v.LatLongAlt.Lat, v.LatLongAlt.Long, v.LatLongAlt.Alt, v.Heading, v.Pitch, v.Bank, v.Coalition, objectType )
 	end
 
 	-- Remove trialing comma