chore(package): update scratch-vm to version 0.2.0-prerelease.20180823181308

package.json

@@ -102,7 +102,7 @@
     "scratch-render": "0.1.0-prerelease.20180820154012",
     "scratch-storage": "0.5.1",
     "scratch-svg-renderer": "0.2.0-prerelease.20180817005452",
-    "scratch-vm": "0.2.0-prerelease.20180822215310",
+    "scratch-vm": "0.2.0-prerelease.20180823181308",
     "selenium-webdriver": "3.6.0",
     "startaudiocontext": "1.2.1",
     "style-loader": "^0.22.1",