Stamina and Double Hit Update

Due to the improved defense reactions rallies are now a lot longer on average. After testing a bit more I felt that stamina is now out of balance - I think players are getting out of breath way too fast now.

So here is a mini update that should fix that.

I also silently introduced double hit faults in the last update. I think they are not really working well - especially if you are a weaker player it often seems hard to understand why the referee stops the game and they were buggy too. Also the referee didn't even show the correct handsignal... So I'm deactivating this for now!

Of course I cannot completely test through all possible character attribute combinations and difficulty settings - so if you think balancing is completely off in any of the many possible setups - just tell me!