Simplify docker publish plugin
Fixing session section of readme
Exit app if config cannot be read correctly
Merge pull request #595 from epipho/session-duration

Fixing session section of readme
Merge pull request #596 from epipho/config-error

Exit app if config cannot be read correctly
minor session refactoring in prep for upcoming changes discussed in #590
Merge pull request #598 from bradrydzewski/master

minor session refactoring in prep for upcoming changes discussed in #590
updated Docker Client to accept TLS
Merge pull request #591 from scrapinghub/docker-host

Use well known DOCKER_HOST syntax for Docker publish
removed hard-coded `http` in Docker client
cleanup docker.New to overload, so to speak
minor docker client refactoring
pass docker cert and key as byte arrays or file paths
drone client accepts docker host, cert and key
Docker publish: added tags field to allow for a single build to be tagged with multiple
tags. Only push tags that are applied to the repo. Change custom_tag to just tag.
Merge pull request #593 from epipho/custom-tags

Allow docker publish to add multiple tags
get commit author email address from raw_author instead of author field for bitbucket
added token to post-commit hooks
forgot to remove `setup.go` file in migration package
Merge pull request #604 from bradrydzewski/master

added token to post-commit hooks