Always include steps in stages

Fix nesting of tag block

Merge pull request #13 from elifesciences/tag_build

Push image on build

Merge pull request #12 from elifesciences/upgrade_php_7.3

Add writable .php_cs.cache

Add missing coding standards file

Build on containers node

Upgrade to PHP 7.3

Merge pull request #10 from elifesciences/php-image

Move PHP version to env

Consistency

Faster

Turns out --ignore-platform-reqs ignores the config in composer.json, so won't work when there's no lock file

Do actually need bash