Merge branch 'cmd-listen-app_uuid' into 'master'

[refactor] messaging code style + cmd_listen application_uuid relaxing

See merge request !48
13 jobs from 28-tests-are-too-permissive-master-broken in 6 minutes and 13 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #17677
integration
containers.build

00:00:09

passed #17678
integration
libnrm.build

00:00:06

passed #17679
integration
nrm.build

00:00:10

 
  Test
passed #17685
integration
Hello.test

00:00:11

passed #17686
knl
KNL-Hello.test

00:00:45

passed #17684
knl
KNL-Listen.test

00:00:44

passed #17682
knl
KNL-Perfwrapper.test

00:00:44

passed #17680
knl
KNL-Power.test

00:00:44

passed #17687
knl
KNL-STREAM.test

00:00:42

passed #17683
integration
Listen.test

00:00:10

passed #17681
integration
Perfwrapper.test

00:00:21

passed #17688
rapl
py.test

00:01:09

 
  Style
passed #17689
flake8

00:01:07