Build using local 'tsc' tool instead of hoping the globally-installed one exists and is the right version

templates/yeoman/package.json

@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "build": "tsc && node ./tmp/build/build.js"
+    "build": "./node_modules/.bin/tsc && node ./tmp/build/build.js"
   },
   "author": "Microsoft",
   "license": "Apache-2.0",
@@ -16,5 +16,8 @@
     "lodash": "^4.11.1",
     "mkdirp": "^0.5.1",
     "rimraf": "^2.5.2"
+  },
+  "devDependencies": {
+    "typescript": "^1.8.10"
   }
 }