Minor Correction: Print Output

Two minor adaptions to the print output are included:

1. The completion_control value which is used to control the correct termination of cp_scan(...), fit(...), and compute_CP_pdfs(...) is reset to zero in compute_CP_pdfs(...) to avoid wrong outputs if one of the former methods is used before the latter.
2. The print output of the batched CP fit is corrected for the singular or plural of "round".