*_ui_test: make Zelenium tests compatible with Zope4 ZMI
The status message no longer use system-msg class, use simpler "assertTextPresent" that should be enough. Simplify the waiting for static pages, clickAndWait is enough.
The status message no longer use system-msg class, use simpler "assertTextPresent" that should be enough. Simplify the waiting for static pages, clickAndWait is enough.