Merge branch 'devel' into 'devel'

some models don't have robot parameters, fix #13

See merge request !12
20 jobs for devel in 6 minutes and 6 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Test
passed doc-coverage #33028

00:00:53

passed format #33029

00:04:44

passed robotpkg-example-robot-data-16.04-debug #33010

00:00:30

passed robotpkg-example-robot-data-16.04-release #33011

00:00:59

passed robotpkg-example-robot-data-18.04-debug #33013

00:00:26

passed robotpkg-example-robot-data-18.04-release #33012

00:00:34

passed robotpkg-example-robot-data-stretch-debug #33015

00:00:32

passed robotpkg-example-robot-data-stretch-release #33014

00:05:25

passed robotpkg-py-example-robot-data-16.04-debug #33017

00:04:42

passed robotpkg-py-example-robot-data-16.04-release #33016

00:04:58

passed robotpkg-py-example-robot-data-18.04-debug #33021

00:06:02

passed robotpkg-py-example-robot-data-18.04-release #33020

00:06:00

passed robotpkg-py-example-robot-data-py3-16.04-debug #33019

00:05:46

passed robotpkg-py-example-robot-data-py3-16.04-release #33018

00:01:45

passed robotpkg-py-example-robot-data-py3-18.04-debug #33023

00:01:07

passed robotpkg-py-example-robot-data-py3-18.04-release #33022

00:06:00

passed robotpkg-py-example-robot-data-py3-stretch-debug #33027

00:00:46

passed robotpkg-py-example-robot-data-py3-stretch-release #33026

00:05:42

passed robotpkg-py-example-robot-data-stretch-debug #33025

00:00:34

passed robotpkg-py-example-robot-data-stretch-release #33024

00:06:06