Upgraded lunr to 2.1.0

Author: imaustink

package.json

@@ -35,7 +35,7 @@
     "escape-html": "^1.0.3",
     "jquery": "^3.1.1",
     "lodash": "^4.17.4",
-    "lunr": "^2.0.3",
+    "lunr": "^2.1.0",
     "steal-stache": "^3.0.1",
     "unescape-html": "^1.0.0"
   },