add error if old debug was set (fixes Issue #307)
add error if old debug was set (fixes Issue #307)

fashionsun/webshim,ilovezy/webshim,webdev1001/webshim,aFarkas/webshim,webdev1001/webshim,cl4rke/webshim,tomascassidy/webshim,aFarkas/webshim,pablogrela/webshim,fashionsun/webshim,cl4rke/webshim,aFarkas/webshim,webdev1001/webshim,cl4rke/webshim,fashionsun/webshim,pablogrela/webshim,ilovezy/webshim,pablogrela/webshim,tomascassidy/webshim,tomascassidy/webshim,ilovezy/webshim