BUGFIX: Clear sitemap registration at the end of each test
Merge branch 'master' into upstream-master (big-o team branch)
API Implement sitemap.xml partitioning (Fixes #9)

Misc upgrade of module code so that site map.xml provides a index site map file based on the standards. Moved configuration vars to the Config API.

Considering how large a change this is, I've branched a 1.0 release off in github.
Fixed enabled() usage (regression from last commit)
API register_routes() for registering custom paths.

This replaces the existing updateItems() + extension hook in favour of consistency with the register_dataobject() interface.

Note that this will likely be superseded by something to do with the Config API in the future.
Add extension hook points.
added nl.yml language
Merge pull request #33 from ARNHOE/patch-1

added nl.yml language