Removed commented out code.
Moved test classes from de.tototec to org directories.
Moved more classes around.
Added Plugin classes for ZipSchemeHandler.
Changed loading of project script.

Splitted compilation and configuration of projects. Moved initialization of default schemehandler into Bootstrapper trait.
Added submodule sbuild-unzip-plugin.
Removed Zip plugin sources (now in separate project).
Integrated external Unzip plugin into build.
Updated submodule.