Update to node 10, and move to package-lock.json

In this case, the npm-shrinkwrap file was using the old v0 format,
and npm needed to effectively re-write the entire file.

services/docstore/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:6.14.1 as app
+FROM node:10.16.3 as app
 
 WORKDIR /app
 
@@ -12,7 +12,7 @@ COPY . /app
 
 RUN npm run compile:all
 
-FROM node:6.14.1
+FROM node:10.16.3
 
 COPY --from=app /app /app
 

services/docstore/docker-compose.yml

@@ -7,7 +7,7 @@ version: "2"
 
 services:
   test_unit:
-    image: node:6.14.1
+    image: node:10.16.3
     volumes:
       - .:/app
     working_dir: /app
@@ -54,5 +54,3 @@ services:
 
   mongo:
     image: mongo:3.4
-
-