chore(ci): update appveyor config, script

Author: dhruvdutt

.appveyor.yml

@@ -22,6 +22,7 @@ test_script:
   - node --version
   - npm --version
   - which npm
+  - npm run appveyor:build
   - npm run appveyor:lint
   - npm run appveyor:test
 

package.json

@@ -25,7 +25,8 @@
     "bin"
   ],
   "scripts": {
-    "appveyor:lint": "lerna bootstrap && npm run lint",
+    "appveyor:build": "lerna bootstrap && npm run build",
+    "appveyor:lint": "npm run lint && npm run tslint",
     "appveyor:test": "npm run test",
     "bootstrap": "npm run clean:all && npm install && lerna bootstrap",
     "build": "tsc",