Update scratch render again to fix speech bubbles again

package.json

@@ -93,7 +93,7 @@
     "scratch-blocks": "0.1.0-prerelease.1525981783",
     "scratch-l10n": "2.0.20180108132626",
     "scratch-paint": "0.2.0-prerelease.20180511152319",
-    "scratch-render": "0.1.0-prerelease.20180511181411",
+    "scratch-render": "0.1.0-prerelease.20180511184906",
     "scratch-storage": "0.4.1",
     "scratch-svg-renderer": "0.1.0-prerelease.20180511144653",
     "scratch-vm": "0.1.0-prerelease.1526052228",