resolve links in ToC and detailed to correct pages
renamed template for detailed description with ToC

remove debugging statement
add navigation to each cached detailed description page

Add page navigation to each page for a paginated detailed
description before caching to disk. Total number of pages is only
known during the request in which they were all generated, so
navigation must be generated then.
read in cached detailed description when available
handle invalid page number for detailed description
catch unexpected type for page number in detailed display
fixed title on browse error page