better handling of keycodes on keydown and keyup
better handling of keycodes on keydown and keyup

zecke/old-pharo-vm-sctp,guillep/OzVM,guillep/OzVM,zecke/old-pharo-vm-sctp,zecke/old-pharo-vm-sctp,zecke/old-pharo-vm-sctp,guillep/OzVM,guillep/OzVM,zecke/old-pharo-vm-sctp,guillep/OzVM,guillep/OzVM,zecke/old-pharo-vm-sctp,guillep/OzVM,zecke/old-pharo-vm-sctp,zecke/old-pharo-vm-sctp,guillep/OzVM,guillep/OzVM