Revert "Small bugfixes"

This reverts commit 4c1c939d317593bc80c8dced13515adaf27ce032.
Revert "Small bugfixes"

This reverts commit 6baf7e0e8ab3c883fce365ac565099b01f29de9b.
Revert "Routing added & extra page added as example"

This reverts commit 6cbaaa29d2af499cf9bc213e7941fd6ff9b96cfd.
Removed slim framework for routing, added htaccess instead and moved the slim version to a seperate branch (slim)