v0.7.1

v0.7.1: softer default wheel accel (strength 0.06, max 6x)

Ease the mac-like preset's wheel ramp: strength 0.10 -> 0.06 and max
multiplier 8x -> 6x, so the slow->fast transition is gentler. Other knobs
unchanged. Updates the config template and the default-preset test to match.