Use service tenant id for Ironic agent swift auth

Config of ironic conductor currently references a non-existent variable.
This corrects it by obtaining and using the correct tenant id.

Change-Id: I4340f75b2b22a8fd3fd8dd5cb30d7e91bce4f654
Allow depth limiting git clones

Depending on how you are using devstack you probably don't need the
entire history of a project so we should allow people to specify a clone
depth to speed up the devstack process.

Change-Id: I804a5abcc80f6a81e915c0bb4dceae72486441a7
Blueprint: git-depth
Remove copyright footer from RST docs

Change-Id: I2fe6aac7caec21af26983636d6ec827b3525ee15
Update docs section for new build

The devstack.org build process was recently changed to run as a CI post
job, publishing the site after every commit.

Change-Id: I05ddb353fae524178a25f28f2437d4fc635167f9
Merge "Use service tenant id for Ironic agent swift auth"
Merge "Remove copyright footer from RST docs"
Merge "Update docs section for new build"
Merge "Allow depth limiting git clones"