Log Message:
cups-pdf: Update to 3.0.1

Changelog:
2017-02-24:  CUPS-PDF 3.0.1      - corrected a bug with multiple instance naming,
                                   some code and logging improvements,
                                   removed obsolete code,
                                   updated the README file
2017-01-04:  CUPS-PDF 3.0.0      - disabled support for multiple PS-files in one \ 
file,
                                   improved PS-structure handling,
                                   reordered compiler call to avoid errors
2014-10-19:  CUPS-PDF 3.0beta2   - code simplifications and optimizations,
                                   improved file name handling,
                                   removed contrib/ directory from tarball (now \ 
on WWW),
                                   new contact data
2012-02-29:  CUPS-PDF 3.0beta1   - support for multiple configurations with one \ 
backend,
                                   support for option setting via lpoptions or PPD,
                                   new option for selecting output file extension,
                                   improved logging system with better error \ 
handling,
                                   various code optimizations,
                                   additional PPD for option setting,
                                   new script in contrib/ for creating user defaults,
                                   updated documentation