[addheader] removed naming of file
[addheader] added max_width, seperate url
and correct listing of too many copyright holders for one line
[pymor.cfg] update
[addheader] moved multiple authors stuff to separate function
[addheader] added listing of contributors via git blame
[dune-gdt] added first darft of a config file
[dune-gdt-other-files.cfg] added first draft
[dune-pymor] added first draft