Going the belt-and-suspenders way of both sleeping and waiting for the
moitor should make sure MaxScale has at least some time to start up, query
the servers and do a single iteration of monitoring.
Some of the scripts assumed that other scripts would be located in the
same directory where the current script was executed.
Also fixed the SSL connection creation which depended on an obsolete
environment variable causing all out-of-source SSL tests to fail.
