Refactored avatar script, fewer keyboard checks.

Also, a little better readability.  Old script saved as "scrAvatar", for
reference.
Revert "Refactored avatar script, fewer keyboard checks."

This reverts commit 25ad70ea5189ef3a426c4ac68c29dd91bcd68b82.
Merge branch 'master' of https://github.com/mikehamil10/gamejam-reticulated