Merge pull request #4713 from LLK/greenkeeper/scratch-blocks-0.1.0-prerelease.1554297463

chore(package): update scratch-blocks to version 0.1.0-prerelease.155…

package.json

@@ -105,7 +105,7 @@
     "redux-throttle": "0.1.1",
     "rimraf": "^2.6.1",
     "scratch-audio": "0.1.0-prerelease.20190114210212",
-    "scratch-blocks": "0.1.0-prerelease.1552662801",
+    "scratch-blocks": "0.1.0-prerelease.1554297463",
     "scratch-l10n": "3.1.20190328114324",
     "scratch-paint": "0.2.0-prerelease.20190318170811",
     "scratch-render": "0.1.0-prerelease.20190312125229",