Shipyard Create Action will stop user from executing a site
action when the current committed revision of documents has
other prior commits that have not been used as part of a
site action, e.g. update_site.
We can re-run the action with the 'allow-intermediate-commits'
option if we are aware of these other commits and if they are
intended.
This patch set updates the relevant Shipyard API, API client,
CLI as well as document for this new option.
It also made some small updates to the 'commit configdocs'
documentation.
Change-Id: I94a4cad313a69dd6fbc626ab923c6eae5cf3db7a
d3d3a0ecb7