The devstack plugins list can be generated through web requests in
environments (such as the proposal slave) that lack copies of all
the relevant git repositories.
One downside to this is that there is no way of getting the last
modification time of the plugin.
Change-Id: I2c5c9282a8ad80014cad171a4dfbdc8f26044cd1
This generates the plugin-registry document from a static header,
a scan of openstack/ git repositories, and a static footer. It
is intended to be run by a periodic job proposal bot to keep the
list of plugins current.
Change-Id: Ia04ab72900c8efd5d5289fbd7632201dcaa3e5d9