Remove Node.js 4

.travis.yml

@@ -68,36 +68,6 @@ jobs:
          - NODE_VERSION: "10"
          - VARIANT: "wheezy"
 
-    - stage: Build
-      env:
-         - NODE_VERSION: "4"
-         - VARIANT: "default"
-
-    - stage: Build
-      env:
-         - NODE_VERSION: "4"
-         - VARIANT: "alpine"
-
-    - stage: Build
-      env:
-         - NODE_VERSION: "4"
-         - VARIANT: "onbuild"
-
-    - stage: Build
-      env:
-         - NODE_VERSION: "4"
-         - VARIANT: "slim"
-
-    - stage: Build
-      env:
-         - NODE_VERSION: "4"
-         - VARIANT: "stretch"
-
-    - stage: Build
-      env:
-         - NODE_VERSION: "4"
-         - VARIANT: "wheezy"
-
     - stage: Build
       env:
          - NODE_VERSION: "6"

README.md

@@ -99,12 +99,12 @@ complete `Dockerfile`. In such cases, you can run a Node.js script by using the
 Node.js Docker image directly:
 
 ```console
-$ docker run -it --rm --name my-running-script -v "$PWD":/usr/src/app -w /usr/src/app node:4 node your-daemon-or-script.js
+$ docker run -it --rm --name my-running-script -v "$PWD":/usr/src/app -w /usr/src/app node:8 node your-daemon-or-script.js
 ```
 
 ## Verbosity
 
-Prior to 8.7.0, 6.11.4 and 4.8.4 the docker images overrode the default npm log
+Prior to 8.7.0 and 6.11.4 the docker images overrode the default npm log
 level from `warn` to `info`. However due to improvements to npm and new Docker
 patterns (e.g. multi-stage builds) the working group reached a [consensus](https://github.com/nodejs/docker-node/issues/528)
 to revert the log level to npm defaults. If you need more verbose output, please