[grunt] use grunt_esvm to start es

.esvmrc

@@ -1,6 +0,0 @@
-{
-  "defaults": {
-    "version": "^1.4",
-    "plugins": ["elasticsearch/marvel/latest", "mobz/elasticsearch-head"]
-  }
-}

package.json

@@ -19,6 +19,7 @@
     "grunt-contrib-less": "~0.10.0",
     "grunt-contrib-requirejs": "~0.4.4",
     "grunt-contrib-watch": "~0.5.3",
+    "grunt-esvm": "~0.1.1",
     "grunt-mocha": "~0.4.10",
     "grunt-replace": "^0.7.9",
     "grunt-run": "^0.2.3",

tasks/config/esvm.js

@@ -0,0 +1,12 @@
+module.exports = function (grunt) {
+  return {
+    options: {
+      version: '^1.4',
+      plugins: [
+        'elasticsearch/marvel/latest',
+        'mobz/elasticsearch-head'
+      ]
+    },
+    dev: {}
+  };
+};

tasks/dev.js

@@ -1,9 +1,20 @@
 module.exports = function (grunt) {
-  grunt.registerTask('dev', [
-    'less',
-    'jade',
-    'ruby_server',
-    'maybe_start_server',
-    'watch'
-  ]);
+  var _ = require('lodash');
+
+  grunt.registerTask('dev', function () {
+    var tasks = [
+      'less',
+      'jade',
+      'esvm:dev',
+      'ruby_server',
+      'maybe_start_server',
+      'watch'
+    ];
+
+    if (grunt.option('no-es')) {
+      _.pull(tasks, 'esvm:dev');
+    }
+
+    grunt.task.run(tasks);
+  });
 };