Issue: Article Tab Text Inconsistent

Some namespaces have different phrases for the "article" tab. This is okay, except that it's not consistent within that namespace. For example, in the Book namespace, the tab says "book". However, if you visit a different tab (non-AJAX visit), the tab reverts to saying "article".

Fixed for the next build. Since the entire post isn't created for each tab, the code that does this had to be moved.