1. Path field was not used and was removed from Category table
2. TemplateExists now lowercases template name before checking on disk
3. System pages (in structure) now has same path creation logic, like virtual pages (based on their location in structure, not on disk)
4. Fixed admin section highlighting when browsing on Front-End through frame and st:EditPage tag is present on page
5. Correct category is passed in st:PageBrowseLink, not parent category id as before
6. Config cache was not rebuild, when changing module root category (e.g. for In-Link)
7. "Content" category removed from tag CategoryPath results
8. Misspelled category path (with "/" instead of "||") in template description.
