allow error messages
lock the directory
restructure
child process
generate a name for a test if it doesn't exist
rename continue function to do_continue

chromium doesn't like functions named "continue"
first working version of a worker!
unlink files if renaming failed
use vnc port
unlink env.sh, make sure to create lock file
some name tweaking
can't move directory atomically to replace symlink
order jobs by priority

we can't use shuffle atm. Hopefully we don't have too much workers
racing for one job
move db file definition to openqa.pm
disable external image loading from w3.org
Try to reflect Makefile's allnewvideos target
add systemd service file for openqa workers
use instance number as 'port'
rename 'port' to 'instance'
create runlog.txt