new format to select counters to be printed out or displayed: "rubric1:[any-]key1...

new format to select counters to be printed out or displayed: "rubric1:[any-]key1,key2,key3,.../rubric2:[any-]key1,...":
- selected key words must be separated by comas.
- If you add "any-" in front of the list of selected key words, the result is the integral of counters over all key words of that rubric (or the content of the key word "any" if it exist) minus the integral of counters over the list of selected key words. Otherwise, the result is simply the integral of counters over the list of selected key words.
- In the particular case of selections made on a rubric that is also displayed, this will simply select the key words to be displayed or not.

Philippe P