Fix jscs config, add gulp rules

gulpfile.js

@@ -0,0 +1,18 @@
+var gulp = require('gulp');
+var mocha = require('gulp-mocha');
+var config = require('./package.json');
+var jscs = require('gulp-jscs');
+
+gulp.task('mocha', function() {
+  return gulp.src('./test/*').
+    pipe(mocha({ reporter: 'dot' }));
+});
+
+gulp.task('jscs', function() {
+  return gulp.src('./index.js').
+    pipe(jscs(config.jscsConfig));
+});
+
+gulp.task('watch', function() {
+  gulp.watch('./index.js', ['jscs', 'mocha']);
+});

package.json

@@ -13,13 +13,17 @@
   },
   "devDependencies": {
     "acquit": "0.0.3",
+    "gulp": "3.8.10",
+    "gulp-mocha": "2.0.0",
+    "gulp-jscs": "1.4.0",
     "istanbul": "0.3.5",
     "jscs": "1.9.0",
     "mocha": "2.0.0"
   },
   "jscsConfig": {
     "preset": "airbnb",
-    "requireMultipleVarDecl": null
+    "requireMultipleVarDecl": null,
+    "disallowMultipleVarDecl": true
   },
   "author": "Valeri Karpov <val@karpov.io>",
   "license": "Apache 2.0"