1. check for non-existing tab (when prefix is given) added in catalog
2. now theme default2007, then theme default2009 will be preselected during install (when available)
3. added new constant DBG_IGNORE_FATAL_ERRORS, that should be used in methods, that define their own error handlers and don't want kApplication to interfear (like sending 500 HTTP Responce code on fatal errors).
4. new edit button design for template editor on Front-End.
5. new method CategoriesTagProcessor::_transformContentBlockData added for applying custom processing to st_ContentBlock tag
6. new tag st_EditingScripts with all admin javascript includes from admin added. In case, when it's now used all such javascript are still added in st_EditPage tag.
