Begin porting Travis-specific WP.org release process

See https://deliciousbrains.com/deploying-wordpress-plugins-travis/
2 jobs for add/wp-org-deploy in 9 minutes and 37 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #1579
PHPunit:PHP7.2:MySQL

00:09:15

 
  Deploy
failed #1580
PluginSVN

00:00:22

 
Name Stage Failure
failed
PluginSVN Deploy
HEAD is now at dac4488 Begin porting Travis-specific WP.org release process
Checking out dac44889 as add/wp-org-deploy...
Skipping Git submodules setup
Checking cache for default...
cache.zip is up to date
Successfully extracted cache
/bin/sh: eval: line 70: bash: not found
$ bash bin/install-wp-tests.sh $MYSQL_DATABASE root $MYSQL_ROOT_PASSWORD mysql latest true
ERROR: Job failed: exit code 127