updates _onkeypress to match _onkeydown and _onkeyup for setting global key property
updates _onkeypress to match _onkeydown and _onkeyup for setting global key property

processing/p5.js,limzykenneth/p5.js,dhowe/p5.js,limzykenneth/p5.js,dhowe/p5.js,processing/p5.js