Use new node for Docker client

Ives van Hoorne · Ives van Hoorne · commit 760702e73b96 · 2017-07-23T15:41:34.000+02:00
diff --git a/Dockerfile b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:7.6
+FROM node:8.2.1
 MAINTAINER Ives van Hoorne
 
 RUN mkdir /usr/src/app
