Module: Admin, replaced the removed URL->getURLBase() function
Updated classes to work with the new database design.

The database design is changed to provide a better abstraction and a
clear line between routing & page information. This also enables the
possibility to use the framework for other webrelated software instead
of just this CMS! ^_^
Module: Site renamed to Block

Even tough the new name this still doesn't covers 100%. The "block"
module is a better name to serve static parts of websites then the
"site" module.
Module: Sitemap & Slider, implementation is following soon
Merge remote-tracking branch 'upstream/develop' into develop
Updating local development branch.