Merge pull request #2681 from LLK/greenkeeper/scratch-l10n-3.0.20180719145856

Update scratch-l10n to the latest version 

package.json

@@ -97,7 +97,7 @@
     "rimraf": "^2.6.1",
     "scratch-audio": "0.1.0-prerelease.20180625202813",
     "scratch-blocks": "0.1.0-prerelease.1532006613",
-    "scratch-l10n": "3.0.20180712200642",
+    "scratch-l10n": "3.0.20180719145856",
     "scratch-paint": "0.2.0-prerelease.20180718183615",
     "scratch-render": "0.1.0-prerelease.20180618173030",
     "scratch-storage": "0.5.1",