test(package): add node 7 in testen config

Author: Scrum

package.json

@@ -28,7 +28,8 @@
     "lintmd": "eslint --ext md --rule indent: [error, 4] .",
     "pretest": "clinton && npm run lintjs && npm run lintmd",
     "test": "nyc ava",
-    "update": "updtr"
+    "update": "updtr",
+    "testen": "testen -n -- ava"
   },
   "files": [
     "lib/"
@@ -80,7 +81,8 @@
     "node": [
       "4",
       "5",
-      "6"
+      "6",
+      "7"
     ]
   },
   "babel": {