Put everything in /usr/local and allow that to be overridden to
a user-writable dir and not require sudo.
Also set the stx-devstack-update job voting, at this time it only runs
on devstack/* changes.
Change-Id: If68ff63585690c7f6c17174797723fb6d43d4473
Signed-off-by: Dean Troyer <dtroyer@gmail.com>
fec4ac9302