Arrowfix

Simply makes arrows show up in any mob.
This should affect all modded mobs as long as the're renderer extends RenderLiving.
The way it works is in postInit, it adds the arrow layer to every mob.

For anybody who wants to add layers to non-players without replacing the render, here is the code.
for (Render<? extends Entity> ent : Minecraft.getMinecraft().getRenderManager().entityRenderMap.values()) {
     if (ent instanceof RenderLivingBase) {
         ((RenderLivingBase) ent).addLayer(new LayerArrow((RenderLivingBase<?>) ent));
     }
}