* `.htaccess` is used to re-define the error documents
* redirects to `index.php?page=error&action=<code>`
* does not work for MPOS inside subfolders yet
Addresses #734. If this works we can add this to all the other themes.
* Adjusted mmcfe-ng occurences in code
* Adjusted Database strucutre to only supply the full structure
* Adjusted default template to MPOS
Addresses #643