Add option to start command.

-r in combination with -s will wait for the zapp to be running and then exit. Useful to measure queuing times.
5 jobs for master in 2 minutes and 39 seconds
Status Job ID Name Coverage
  Static Test
passed #41996
docs-test

00:01:02

passed #41994
pylint

00:01:09

passed #41995
unittests

00:01:03

14.0%
 
  Build
passed #41997
images

00:00:34

 
  Integration Test
passed #41998
api-test

00:00:54