psiinon/zap2docker-weekly-x repository overview

This is based on https://hub.docker.com/r/owasp/zap2docker-weekly/⁠ but with the following changes:

• Uses ubuntu:15.04
• Installs xvfb and firefox
• Adds a zap-x.sh script which starts xvfb in the background and then ZAP This hopefully will allow add-ons which use Selenium, such as the Ajax Spider and DOM XSS scanner to be usable in daemon mode