Active mutation expansion/bugfix

This makes a few more mutations Active: the Retractable Claws, Insect Wings, and combat tails.  Also fixes #8959.

And player::suffer will need some love.  Sorry, folks, the flood of new mutations just got pushed back again.
And for the record, if it has 0 time, it never activates at all.  But changing the on/off status for a given mutation is instant/takes no time, and I'm content with that.