Change Details

The current `npm-test` image just has npm and ruby/jsduck installed and can do all the basic things MediaWiki extensions need, but we also need a version with xvfb/chromium/firefox to be able to run qunit (and selenium I'm guessing) too.

The current `npm-test` image just has npm and ruby/jsduck installed and can do all the basic things MediaWiki extensions need, but we also need a version with xvfb/chromium/firefox to be able to run qunit (and selenium I'm guessing) too. As an example `mediawiki/extensions/WikibaseJavaScriptApi` uses karma / phantomjs

The current `npm-test` image just has npm and ruby/jsduck installed and can do all the basic things MediaWiki extensions need, but we also need a version with xvfb/chromium/firefox to be able to run qunit (and selenium I'm guessing) too. As an example `mediawiki/extensions/WikibaseJavaScriptApi` uses karma / phantomjs