sites/tasks/watch.js
'use strict';
var gulp = require('gulp');
gulp.task('watch', ['lint', 'build-debug', 'spec'], function(){
gulp.watch('./src/less/**/*.less', ['build-less']);
gulp.watch('./src/js/**/*.js', ['lint', 'build-debug-js']);
gulp.watch('./spec/**/*.js', ['lint', 'spec']);
});