Merge branch 'update/travis' into 'master'

Fix PHP 5.3 test

See merge request !6
9 jobs for master in 1 minute and 51 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #4802
PHP5.3

00:01:09

passed #4803
PHP5.3:WP45

00:01:29

passed #4804
PHP5.6

00:01:15

passed #4805
PHP7.0

00:01:08

passed #4806
PHP7.1

00:01:27

passed #4807
PHP7.2

00:00:56

passed #4808
PHP7.3

00:01:00

passed #4809
PHPCS

00:00:47

 
  Deploy
passed #4810
PluginSVN

00:00:19