Dockerfile: fixed installation when $WORKDIR!=/root
Ship: allow to customize Docker port
group_containers function became Shipment method
Merge pull request #40 from nikicat/master

allow to customize Docker port per ship, refactoring
add docs for Container.check method
use ssh instead of ambassador container to deploy/fetch config files
Merge pull request #41 from nikicat/master

use ssh instead of ambassador container to deploy/fetch config files
fixed "exec" action docstring
Image: removed repo parsing hueristics, remved automagic rebuilding
Bump version: 6.1 → 7.0
Merge pull request #42 from nikicat/master

Image: removed repo parsing hueristics, remved automagic rebuilding
Bump version: 7.0 → 7.1
utils: added resource_string function
Ship: cache getssh result
SourceImage: reset id after build
Shipment: add backref to self into ships
SourceImage: serialize files to yaml with content
migrated from docopt to click
Bump version: 7.1 → 8.0
added comment about image.getid() meaning