major rewrite - combined separate docs-lib and moongate apps into single app using prefixes with multiple route files; merged DB functions into model which is now a D2 plugin, providing encapsulated model domains (infolib, moongate & dpw); uses route names to allow tt to call uri_for_route, but some caveats: * route names must be unique across all route files * uri_for_route cannot be used in any template loaded after a forward since the data required in request.uri_for_route($name) is deleted during the forwarding process leading to fatal error when tt calls the uri_for_route function; META function no longer works since tt WRAPPER function disabled to allow routes to define layout
changed $cols to $fields in App::DB to disambiguate from @cols; cosmetic change to gitlog() method for brevity; root ('/') route needs to capture query_param when forwarded; tests need cookie_headers for routes recently protected by authentication
