chore: add jscs gulp task

.jscsrc

@@ -0,0 +1,4 @@
+{
+    "preset": "google",
+    "validateIndentation": 4
+}

.jshintrc

@@ -34,7 +34,6 @@
         "it"
     ],
     "indent": 4,
-    "maxlen": 120,
     "devel": false,
     "noempty": true
-}
+}

gulpfile.js

@@ -1,6 +1,7 @@
 var path = require('path'),
 	gulp = require('gulp'),
 	jshint = require('gulp-jshint'),
+	jscs = require('gulp-jscs'),
 	jshintReporter = require('jshint-stylish'),
 	plugins = require('gulp-load-plugins')({
 		config: path.join(__dirname, 'package.json')
@@ -21,6 +22,12 @@ gulp.task('jshint', function() {
 	.pipe(jshint.reporter(jshintReporter));
 });
 
+gulp.task('jscs', function() {
+	gulp.src(config.src.files)
+	.pipe(jscs({fix: true}))
+    .pipe(gulp.dest('src'));
+});
+
 function mochaRunnerFactory(reporter) {
 	return plugins.mocha({
 		reporter: reporter || config.reporter