gitbook v3 support

Author: Bernhard Grünewaldt

package.json

@@ -2,9 +2,9 @@
   "name": "gitbook-plugin-advanced-emoji",
   "description": "Shows the common emojis used on GitHub",
   "main": "index.js",
-  "version": "0.1.7",
+  "version": "0.1.8",
   "engines": {
-    "gitbook": ">=2.5.0"
+	"gitbook": ">=3.0.0-pre.0"
   },
   "gitbook": {
     "properties": {