start-up sequence will now wait for at least one line in the simulator log before proceeding

had to fix the log capture code to make this work
Merge pull request #1620 from penguinho/doctor

Doctor Improvements
Adding code to kill zombie deamon launchers
Adding automatic detection of the last used simulator version
Fix #1442
Merge pull request #1619 from penguinho/sim-wait

Adding wait for simulator to launch by waiting for log to populate