The structure of the ROT(ational velocity) measurement has been changed.

The structure of the ROT measurement has been changed to accept new data:

• 'vsini' can be decimal numbers
• a 'error' field has been added between square brackets
• a quality field has been added. Its value can be 'A'(best) to 'E'(unknown). Initially the quality has been set to 'D' for all existing measurements.