Task #6559 Next iteration: executable-args recipe handles multiple input...

Task #6559 Next iteration: executable-args recipe handles multiple input mapfiles with inputkeys for the including files. parameter for individual processes per node. the master recipe handles the executable_args and executable_casa noderecipes. casa now has individual tmpdirs as working dir which enables multiple instances on one node. changes in genericpipeline so that more than one occurence of outputreference can be replaced.