Updated openstack/openstack
Project: openstack-dev/devstack  d09a1db5a449fc758bf840858f6fecba173705b3

add shebang lines to all lib files

With gerrit 2.8, and the new change screen, this will trigger syntax
highlighting in gerrit. Thus making reviewing code a lot nicer.

Change-Id: Id238748417ffab53e02d59413dba66f61e724383