added preliminary version of setup_project.xql
Merge pull request #1 from simar0at/cr-xq

Schema redone with annotated documentation for possible key values. Firs...
edited, ammended documentation of the param-keys in config.xsd
Made element container optional, added a tags so the link may be generated as such if xml tags in annotations are not protected (oxygen setting). First draft of a mappings.xsd in order to describe how these files may look.