Merge remote-tracking branch 'upstream/master' into UpdateMsRest

package.json

@@ -37,12 +37,14 @@
     "mocha": "^3.5.3",
     "npm-run-all": "^4.1.2",
     "should": "5.2.0",
+    "shx": "^0.2.2",
     "ts-loader": "^2.3.7",
     "ts-node": "^5.0.1",
     "tslint": "^5.7.0",
     "typescript": "^2.5.2",
     "uglify-es": "^3.1.0",
-    "webpack": "^3.6.0"
+    "webpack": "^3.6.0",
+    "yarn": "^1.6.0"
   },
   "homepage": "https://github.com/Azure/ms-rest-azure-js",
   "repository": {