fixed a regression with the `isCurrentAnimation` function
fixed a regression with the `isCurrentAnimation` function

somehow the `name` property of the current animation is being replaced
by `0` ! this needs a proper fix, but to do that, generally how data is
being stored in me.Sprite needs some rethinking/cleaning

rlugojr/melonJS,rlugojr/melonJS,melonjs/melonJS,rlugojr/melonJS,melonjs/melonJS