Users were generally confused about where to configure things like allowed URLs. Because they were reset in between each sessions, they needed to be applied repeatedly in a before block. This introduces an API for global configuration, which will be applied for every session. It also deprecates the per-session configuration methods, as those are less likely to be useful.
* Recommend Stack Overflow instead http://robots.thoughtbot.com/moving-open-source-project-mailing-lists-to-stack-overflow/