Antistatic: v0.7.1, v0.7.2, v0.7.3 - Bug fixes, physics, and etcetera

A quick set of three patches over the last two weeks, featuring a new knockback curve and a little bit of menu polish. v0.7.1 - Dec 26 2020 Minor balance patch. Tweaks Can now jump and grab out of the start of dash atta…