Merge pull request #250 from textpattern/greenkeeper/lunr-2.3.7

Update lunr to the latest version 🚀

Author: philwareham

package.json

@@ -31,7 +31,7 @@
   },
   "dependencies": {
     "createjs": "1.0.1",
-    "lunr": "2.3.6",
+    "lunr": "2.3.7",
     "prismjs": "1.17.1",
     "textpattern-branding": "0.2.11"
   },