10 dockerize

[fetmar]

Issue #10

• added dockerfile and handling restarts with pm2 inside the container
• builds docker image in travis
• Pushes to docker
• Put some useful tags on the image
• decided to npm install inside the dockerfile, because it might pick things for that environment
• added request logging middleware
• run with non root user
• only push for master branch

[coveralls]

Pull Request Test Coverage Report for Build 89

• 15 of 15 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 92.353%

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Totals
Change from base Build 52:	0.1%
Covered Lines:	230
Relevant Lines:	246

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💛 - Coveralls