tests for new workflow description are running now. It remains to
combine old and new description files
added WorkflowDescriptionReader as default workflow descriptin file
reader and added a delegation in WorkflowDescriptionReader to delegate
to old PepperParamsReader
implemented storing of PepperJOb to file
forgotten to add test template file in last commit
fixed a bug in property add layer before processing
moved PepperModuleImpl.before() and PepperModuleImpl.after() to
PepperMapperController, since in PepperModuleImpl, it was not threaded.