statstr --> ctrlstr

	modified:   lib/apputils.js
	modified:   lib/default.js
	modified:   lib/generic.js
	modified:   lib/observe.js
	modified:   lib/operation.js
	modified:   lib/receive.js
	modified:   lib/worker.js
error case in observer

	modified:   lib/observe.js
	modified:   lib/operation.js