PDC core versions 914-915

[Alexei B.]

- Important: Fixed a problem, when clustering distance was the same for both presets (Arts&Sciences). Results from this version and on will be different from previous versions ad are to be more exact. Any feedback is appreciated.

- New long-awaited feature added for testing purposes: saving reports to PDF ! It will be in testing for some time and we hope it will be then added on a regular basis. Reports are uploaded to our servers for conversion and you then download the result.