bump all dependencies

Author: LoicMahieu

package.json

@@ -12,13 +12,13 @@
   },
   "author": "Ritchie Martori",
   "dependencies": {
-    "async": "~0.9.0",
-    "chai": "^1.9.2",
-    "supertest": "~0.13.0"
+    "async": "^1.5.1",
+    "chai": "^3.4.1",
+    "supertest": "^1.1.0"
   },
   "devDependencies": {
-    "loopback": "^2.2.0",
-    "mocha": "~1.21.4"
+    "loopback": "^2.26.2",
+    "mocha": "^2.3.4"
   },
   "license": "MIT"
 }