add complete url path to be opened with 'open' module
add complete url path to be opened with 'open' module

SteveBash/gulp-webserver,mattraykowski/gulp-webserver,bolasblack/gulp-webserver,robertbaker/gulp-webserver,schickling/gulp-webserver,bialikover/gulp-webserver,davidknezic/gulp-webserver,sanyueyu/gulp-webserver