emit error event instead of throwing error to allow for graceful recovery when using gulp watch
emit error event instead of throwing error to allow for graceful recovery when using gulp watch

danwkennedy/gulp-ng-config,psalaets/gulp-ng-config,ajwhite/gulp-ng-config,danwkennedy/gulp-ng-config,dimitardanailov/gulp-ng-config,ajwhite/gulp-ng-config,psalaets/gulp-ng-config,dimitardanailov/gulp-ng-config