This patch standardizes the CONTRIBUTING.rst file and adds the
required doc/source/contributor/contributing.rst
Change-Id: Icee34784ede414890704a5bd8a4b56000df49e53
Use https instead of http to ensure the safety without containing our
account/password information
Change-Id: I0e26c5acb284d4454e25e8ce28bb72a148a7f71c
Almost all of the openstack project use CONTRIBUTING.rst,
We should consistent with the most of the project.
Change-Id: I9309bd647b83ecfebeeb35ae99a810a484baaa8a
Brian Rosmaita