Merge branch 'add/linting-master' into 'master'

Add linting

See merge request !8
5 jobs for master in 4 minutes and 59 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
failed #3910
PHPunit:PHP5.3:MySQL

00:03:08

passed #3911
PHPunit:PHP5.6:MySQL

00:02:54

passed #3912
PHPunit:PHP7.0:MySQL

00:02:49

passed #3913
PHPunit:PHP7.1:MySQL

00:02:44

passed #3914
PHPunit:PHP7.2:MySQL

00:04:58

 
Name Stage Failure
failed
PHPunit:PHP5.3:MySQL Test
No job log