Standardise mongodb-runner CI

package.json

@@ -17,9 +17,8 @@
     "fmt": "mongodb-js-fmt test/*.js bin/*.js index.js",
     "check": "mongodb-js-precommit",
     "ci": "npm run check && npm test",
-    "pretest": "mongodb-runner install && mongodb-runner start",
-    "test": "mocha",
-    "posttest": "mongodb-runner stop"
+    "pretest": "mongodb-runner install",
+    "test": "mocha"
   },
   "precommit": [
     "check"

test/fetch.test.js

@@ -7,6 +7,9 @@ var _ = require('lodash');
 // var debug = require('debug')('mongodb-index-model:text:fetch');
 
 describe('fetch()', function() {
+  before(require('mongodb-runner/mocha/before')());
+  after(require('mongodb-runner/mocha/after')());
+
   context('local', function() {
     this.slow(2000);
     this.timeout(10000);