revert version (forgot to tag)

Author: Bernhard Grünewaldt

package.json

@@ -2,7 +2,7 @@
   "name": "gitbook-plugin-advanced-emoji",
   "description": "Shows the common emojis used on GitHub",
   "main": "index.js",
-  "version": "0.1.7",
+  "version": "0.1.6",
   "engines": {
     "gitbook": ">=2.5.0"
   },