* Add possibility to ignore "no data recorded" screen for one hour

* update screens

* update wording

Allow extra environments to be specified through testing environment variables, add a new one for UI tests call ui-test.php, use to remove port from localhost in UI tests, and fix a bug in ContainerFactory (config/config.php should be applied after environment files).

(I think it didn't find the screenshot eg. http://builds-artifacts.piwik.org/ui-tests.master/10877.7/screenshot-diffs/diffviewer.html )