Dont set flay default minimum score.

This is a proposal to consider not configuring **by default** a flay minimum score and instead allow flay to use its own default threshold (16). Currently we are setting it to 100, which seems pretty high and results in few if any hits, whereas when I run it with the flay default, it finds lots of useful information.

I realize that it is configurable and I could simply configure the minimum_score lower for myself and go on, but I think, coming to flay through metric_fu, most people are unlikely to do so or know what a reasonable threshold is without a deep dive into flay.