Merge pull request #2383 from LLK/greenkeeper/scratch-blocks-0.1.0-prerelease.1529342508

Update scratch-blocks to the latest version 

package.json

@@ -94,7 +94,7 @@
     "redux-throttle": "0.1.1",
     "rimraf": "^2.6.1",
     "scratch-audio": "0.1.0-prerelease.20180618171838",
-    "scratch-blocks": "0.1.0-prerelease.1529329760",
+    "scratch-blocks": "0.1.0-prerelease.1529342508",
     "scratch-l10n": "3.0.20180611175036",
     "scratch-paint": "0.2.0-prerelease.20180614161221",
     "scratch-render": "0.1.0-prerelease.20180618173030",