Manually update the scratch-* deps, greenkeeper seems behind.

package.json

@@ -88,13 +88,13 @@
     "redux-mock-store": "^1.2.3",
     "redux-throttle": "0.1.1",
     "rimraf": "^2.6.1",
-    "scratch-audio": "0.1.0-prerelease.1515596313",
+    "scratch-audio": "0.1.0-prerelease.1516198804",
     "scratch-blocks": "0.1.0-prerelease.1515788457",
     "scratch-l10n": "2.0.20180108132626",
-    "scratch-paint": "0.1.0-prerelease.20180110204944",
+    "scratch-paint": "0.1.0-prerelease.20180112204058",
     "scratch-render": "0.1.0-prerelease.1515699707",
     "scratch-storage": "0.3.0",
-    "scratch-vm": "0.1.0-prerelease.1515771598-prerelease.1515771612",
+    "scratch-vm": "0.1.0-prerelease.1516195998-prerelease.1516196012",
     "selenium-webdriver": "3.5.0",
     "startaudiocontext": "1.2.1",
     "style-loader": "^0.19.0",