Usability update, prepping for Steam stats, bug fixes, and optimizations - 0.9.7.4 — Dwarven Brawl Bros Steam update #221510

This minor update focuses primarily on usability issues, most notably fixing the complete lack of in-game help. When running the game for the first time, there is now a "quick start" help screen that explains the key combinations. This same info can also be found in the new "stats & help" screen, accessible via menu by pressing the attack key. This screen is reserved for future use to show several local and global stats, such as most used weapons. Currently, there are "matched played" and "longest session length in matches" stats present that depict those values, just locally. (Note that the "quick start" guide is not the "tutorial" that was promised. :-) A proper tutorial will be added!) If you had trouble with certain controllers annoyingly registering opposite directions when releasing the stick, this should now be resolved, at least on most controllers. Some further physics optimizat...