Paginate tag pages, allowing maximum 2 pages per tag to be app cached.
Setup virtual paths for tag pages such that /tags/tagname.html loads
/tags/tagname1.html similar to how pages are handed. This is similar to
how pages are handled in that /pagename.html loads /pages/pagename.html.
Dry up blog page's pagination and create a dry template for pagination
because it is also used on the tag pages.
Signed-off-by: Collin J. Doering <rekahsoft@gmail.com>