Update for Node.js v7.6.0, v6.10.0 and v4.8.0
Update for Node.js v7.6.0, v6.10.0 and v4.8.0

See:

- https://nodejs.org/en/blog/release/v7.6.0/
- https://nodejs.org/en/blog/release/v6.10.0/
- https://nodejs.org/en/blog/release/v4.8.0/

Also includes a new gpg fingerprint for Italo A. Casas:

- https://github.com/nodejs/docker-node/pull/336
- https://github.com/nodejs/node#release-team

jperrin/official-images,mattrobenolt/official-images,davidl-zend/official-images,jperrin/official-images,neo-technology/docker-official-images,dinogun/official-images,jperrin/official-images,31z4/official-images,thresheek/official-images,pesho/docker-official-images,pesho/docker-official-images,thresheek/official-images,nodejs-docker-bot/official-images,thresheek/official-images,thresheek/official-images,neo-technology/docker-official-images,mattrobenolt/official-images,robfrank/official-images,thresheek/official-images,emilevauge/official-images,davidl-zend/official-images,emilevauge/official-images,mattrobenolt/official-images,pesho/docker-official-images,infosiftr/stackbrew,chorrell/official-images,neo-technology/docker-official-images,31z4/official-images,robfrank/official-images,docker-library/official-images,neo-technology/docker-official-images,pesho/docker-official-images,dinogun/official-images,neo-technology/docker-official-images,thresheek/official-images,docker-library/official-images,nodejs-docker-bot/official-images,davidl-zend/official-images,mattrobenolt/official-images,chorrell/official-images,thresheek/official-images,chorrell/official-images,nodejs-docker-bot/official-images,nodejs-docker-bot/official-images,nodejs-docker-bot/official-images,thresheek/official-images,davidl-zend/official-images,31z4/official-images,31z4/official-images,31z4/official-images,nodejs-docker-bot/official-images,jperrin/official-images,robfrank/official-images,infosiftr/stackbrew,davidl-zend/official-images,jperrin/official-images,emilevauge/official-images,docker-library/official-images,pesho/docker-official-images,chorrell/official-images,infosiftr/stackbrew,robfrank/official-images,jperrin/official-images,mattrobenolt/official-images,docker-solr/official-images,infosiftr/stackbrew,docker-flink/official-images,dinogun/official-images,dinogun/official-images,mattrobenolt/official-images,pesho/docker-official-images,nodejs-docker-bot/official-images,31z4/official-images,robfrank/official-images,infosiftr/stackbrew,docker-library/official-images,docker-flink/official-images,chorrell/official-images,davidl-zend/official-images,infosiftr/stackbrew,dinogun/official-images,docker-library/official-images,davidl-zend/official-images,thresheek/official-images,infosiftr/stackbrew,docker-library/official-images,robfrank/official-images,mattrobenolt/official-images,docker-library/official-images,docker-library/official-images,nodejs-docker-bot/official-images,docker-flink/official-images,chorrell/official-images,emilevauge/official-images,docker-library/official-images,thresheek/official-images,emilevauge/official-images,docker-library/official-images,chorrell/official-images,dinogun/official-images,chorrell/official-images,31z4/official-images,emilevauge/official-images,thresheek/official-images,neo-technology/docker-official-images,chorrell/official-images,docker-solr/official-images,davidl-zend/official-images,31z4/official-images,davidl-zend/official-images,31z4/official-images,davidl-zend/official-images,infosiftr/stackbrew,infosiftr/stackbrew,pesho/docker-official-images,pesho/docker-official-images,emilevauge/official-images,neo-technology/docker-official-images,neo-technology/docker-official-images,neo-technology/docker-official-images,docker-flink/official-images,davidl-zend/official-images,robfrank/official-images,docker-flink/official-images,davidl-zend/official-images,chorrell/official-images,emilevauge/official-images,docker-library/official-images,thresheek/official-images,docker-flink/official-images,pesho/docker-official-images,infosiftr/stackbrew,infosiftr/stackbrew,dinogun/official-images,docker-solr/official-images,docker-flink/official-images,robfrank/official-images,neo-technology/docker-official-images,docker-solr/official-images,neo-technology/docker-official-images,jperrin/official-images,docker-solr/official-images,dinogun/official-images,thresheek/official-images,mattrobenolt/official-images,docker-solr/official-images,31z4/official-images,nodejs-docker-bot/official-images,neo-technology/docker-official-images,docker-library/official-images,nodejs-docker-bot/official-images,docker-solr/official-images,31z4/official-images,infosiftr/stackbrew,pesho/docker-official-images,emilevauge/official-images,docker-flink/official-images,chorrell/official-images,jperrin/official-images,jperrin/official-images,jperrin/official-images,docker-flink/official-images,jperrin/official-images,mattrobenolt/official-images,docker-solr/official-images,docker-solr/official-images,emilevauge/official-images,dinogun/official-images,docker-solr/official-images,docker-solr/official-images,dinogun/official-images,docker-flink/official-images,robfrank/official-images,chorrell/official-images,chorrell/official-images,pesho/docker-official-images,neo-technology/docker-official-images,docker-solr/official-images,thresheek/official-images,nodejs-docker-bot/official-images,docker-library/official-images,31z4/official-images,robfran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