Add source line when reporting parse error in ServiceWebAgent.
Add source line when reporting parse error in ServiceWebAgent.

jacksonic/vjlofvhjfgm,foam-framework/foam2,foam-framework/foam2,jacksonic/vjlofvhjfgm,foam-framework/foam2,foam-framework/foam2,foam-framework/foam2,jacksonic/vjlofvhjfgm