worked on blocking + a few more changes

worked on blocking mostly (block with F or semicolon)
--cannot control character while blocking
--reduces damage to about 30%
--blocking only successful if facing other player
--current uses idle animations
collision offset increased on north side
increased health to 100, increased attack damage * 3
standing kick no longer increases velocity
jumpkick moves you faster & can no longer move while jumpkicking
did some bugfixes with previous code