Move all Dockerfile samples to non-root user

Expected Behaviour

As an OpenFaaS end-user, I want to run all samples on my OpenFaaS cluster, even with the new non-root feature enabled.

Current Behaviour

The typescript runtime was recently added to openwhisk but we do not yet have docs for the runtime and it is missing from runtimes.json.

We need a doc like https://github.com/apache/incubator-openwhisk/blob/master/docs/actions-nodejs.md for typescript functions.

Adding the runtime to the runtime manifest can be done per https://github.com/apache/openwhisk/blob/master/docs/actions-new.md#the-

Feature Request

Add a --context flag to dispatch CLI.

Detailed Description

You can have multiple contexts in the dispatch config file (~/.dispatch/config.json). Each context stores the location of a dispatch endpoint. Currently, to switch context you need to do `dispatch manage context --set <context_

Pull Request 857 drew attention to the output of the first Error block in 09-errors episode being misaligned/lines misnumbered:

<ipython-input-1-70bd89baa4df> in favorite_ice_cream()
      4         'vanilla',                                                                    'strawberry'
      5   

Expected Behaviour

We should have Travis / Go & OpenFaaS GitHub badges in our README.md file just like openfaas/faas openfaas/faas-netes openfaas/faas-cli and etc.

Curren