Clean up docstrings in contrib.oauth1.core

The docstrings were using the wrong parameter name.

Change-Id: I237b2b137fa8c8f6138a4a7eacf6140843517225
Fix test_auth isolation

When running "tox -e py27 test_auth", the first test in
test_v3_auth.TestAuthJSON would fail with an authentication error.
This is because earlier tests had already loaded up the
authentication plugins and hadn't cleared them when done. This
change makes it so that the authentication plugins are cleared in
any test loading backends so that should make sure they're always
cleared for the next test.

Change-Id: I9d47d17f1da06e65b67e092d1d733ce472d10ac5
correct the document links in man documents

Keystone man documents "SEE ALSO" url shoud be keystone.openstack.org

Change-Id: Ic0ed7ad76903072d7bd1421215277d9dbb9c5775
Merge "Clean up docstrings in contrib.oauth1.core"
Merge "correct the document links in man documents"
Merge "Fix test_auth isolation"