The enable_service() and disable_service() functions in
https://review.openstack.org/9407 require the functions
file be sourced before stackrc.
* exercise.sh
* samples/local.sh (this will require manual addition to the user's
local.sh if they based it on the sample)
* tools/build_bm.sh
Change-Id: I1bed687867e870bef5748289d712376435a776af
Add ROOTSLEEP parameter to avoid 10 second sleep.
Add host argument to mysql password change command so that it
will still work if mysql is already installed and running
(otherwise, the my.cnf created immediately prior takes precedence).
Add timeouts when waiting for things to start so they aren't in
infinite loops.