Use loopback 2.x in unit tests.

package.json

@@ -35,7 +35,7 @@
     "browserify": "^4.1.8",
     "fs-extra": "^0.10.0",
     "jshint": "^2.5.6",
-    "loopback": "^1.5.0",
+    "loopback": "^2.5.0",
     "mocha": "^1.19.0",
     "must": "^0.12.0",
     "supertest": "^0.13.0"

test/browser.test.js

@@ -69,6 +69,9 @@ function createBrowserLikeContext() {
       debug: process.env.DEBUG
     },
 
+    // used by DataSource.prototype.ready
+    setTimeout: setTimeout,
+
     // used by `debug` module
     document: { documentElement: { style: {} } },