Remove copyright footer from RST docs

Change-Id: I2fe6aac7caec21af26983636d6ec827b3525ee15
Merge "Remove copyright footer from RST docs"
Merge commit 'refs/changes/03/127603/4' of git://gold.eng.hq.xensource.com/git/github/openstack-dev/devstack into tmpbranch
Merge commit 'refs/changes/11/129211/1' of git://gold.eng.hq.xensource.com/git/github/openstack-dev/devstack into tmpbranch