adds gulpfile

gulpfile.js

@@ -0,0 +1,48 @@
+require('dotenv').load();
+
+var gulp = require('gulp'),
+    jshint = require('gulp-jshint'),
+    mocha = require('gulp-mocha');
+
+gulp.task('lint', function() {
+
+  var lint = jshint({
+    "curly": false,
+    "eqeqeq": true,
+    "immed": true,
+    "latedef": "nofunc",
+    "newcap": false,
+    "noarg": true,
+    "sub": true,
+    "undef": false,
+    "unused": "var",
+    "boss": true,
+    "eqnull": true,
+    "node": true,
+    "-W086": true
+  });
+
+  return gulp.src([
+    'index.js',
+    'lib/*.js',
+    'test/*.js'
+  ]).pipe(lint)
+  .pipe(jshint.reporter('jshint-stylish'));
+
+});
+
+gulp.task('test', function() {
+
+  return gulp.src('test/*.js', {read: false})
+    .pipe(mocha())
+    .once('error', function(err) {
+      console.error(err);
+      process.exit(1);
+    })
+    .once('end', function() {
+      process.exit();
+    });
+
+});
+
+gulp.task('default', ['lint', 'test']);