Add ZApp validation and fix missing key

1 job for master in 14 seconds
Status Job ID Name Coverage
  Deploy
failed #2318
images

00:00:14

 
Name Stage Failure
failed
images Deploy There is an unknown failure, please try again
-------------END SCRIPT-----------------
Images built:
docker-registry:5000/zapps/boinc:2318

$ python gen_json.py
ZApp written
$ validate_all.sh
/bin/sh: eval: line 62: validate_all.sh: not found
ERROR: Job failed: exit code 127