The only time ws should occur in page names is when it's displayed.
This will require scouring the codebase for all instances of
GetPageTag() or $this->tag, and evaluating each usage to determine if
the tag is being used for display purposes. Some core Wikka methods
require changes as well. I've checked in the core changes and
examples of what will need to be modified in both templates and
actions/headers if we choose to continue down this road. Refs #191