New to ver 2.2: wiggle.selected to get same yield as in ver 1.78.

Now we have less bugs and a dialog for options.

Code cleaning for better performance.
Slow filters management in order to be much faster on filtered puzzles (I think it does not change the velocity on normal puzzles: please do not be disturbed by the strange scoreline appearance: the scores and best scores are well good recorded).

ver 2.2.1: added the possibility to select segments (default = all protein) in the dialog box.
It is still possible to do more complex selection editing the recipe (exclude segments, nominate a list of segments etc). I'll evaluate if it is interesting to put these options into the dialog box.