Quick Winter Update

We've added a fairly basic training mode that lets you practice moves and powerups against an optional AI, with the ability to toggle infinite health/power/powerups. We've also done some tweaking to the hit timing of a lot of the attacks. One character that got a lot of work was McRainbows, as their attacks were happening just a little later in the anim than they should have been, contributing to their overall sluggishness. There's still a lot more we've got in our pipeline, but these were some quick enhancements before the end of the year.