1) UCP -> Airship
2) readthedocs.org -> readthedocs.io (there is redirect)
3) http -> https
4) attcomdev -> airshipit (repo on quay.io)
5) att-comdev -> openstack/airship-* (repo on github/openstack git)
6) many URLs have been verified and adjusted to be current
7) no need for 'en/latest/' path in URL of the RTD
8) added more info to some setup.cfg and setup.py files
9) ucp-integration docs are now in airship-in-a-bottle
10) various other minor fixes
Change-Id: I4b8cc6ddf491e35d600a83f5f82d7717108e31dd
Updates dockerfile to use python 3.5 base image and
reorders to take advantage of image layering caching better
Removes some outdated and unused files
adds .editorconfig file
adds .vscode to gitignore
Change-Id: I08571b7176f0cb9fab42f072326c6c14d86d518a