This PS adds funtionality to Shipyard to validate the existence of
the Pegleg-generated "deployment-version" document (Pegleg change id:
I7919b02d70c9797f689cdad85066d3953b978901). As implied, this new
validation only checks for the presence of the document (by name and
schema) and currently does not care about any of the document's
contents under "data".
The severity of a failed validation is configurable through the new
"validations" configuration section in shipyard.conf, and is
defaulted to skip the validation altogether. This means that by
default, this patch set does not alter the functionality of Shipyard
Note that with the default configuration of this new validation,
Shipyard functionality should be unchanged.
Change-Id: I5e7269066f769804710a0fd1f2c8d0aece0d3314
64171aacf4