Suppress the error sound effect during key repeats#53

BenHetherington wants to merge 4 commits intoOffBroadway:custom-loader-menuOffBroadway/cubeboot:custom-loader-menufrom

BenHetherington:suppress-error-sfx-on-key-repeatBenHetherington/cubeboot:suppress-error-sfx-on-key-repeatCopy head branch name to clipboard