php conference architecture libraries web client routing symfony https server rokka message queues rabbitmq performance mysql doctrine http varnish caching bash rest workshop debugging ez elasticsearch meetup german httplug training tutorial cmf french staging configuration apache tools phpstorm phpcr jackalope assetic javascript create.js agile ws2801 electronic art arduino photos dic content repository testing processing.org interactive art images content management script boardgames lucene google search appliance drupal wallis fun recycling semantic mediawiki i18n versioning regexp email sso shell linux verinec opensource make latex xml java