Increase fps to 60, adjust character speed.

This fixes the stuttering that was observed in FireFox (but was not
present in Chrome).  JawsJS will use an interval if fps is set to
anything besides 60fps which FF doesn't seem to like as much.

Signed-off-by: suicidepills <atom.mac@gmail.com>
Merge branch 'master' of https://github.com/suicidepills/hack-n-slash-sprint