Tasers will now cause movement slow downs on the first hit

Before:  Tasers do 40 halloss damage and that drops to 39 on next life() tick so most people won't be slowed down by the first taser hit.

After:  If you have any halloss you will slow down some.  I've set it at 1 delay for every 10 halloss, this might need adjusting (15 instead of 10 possibly)
Merge pull request #5740 from Ccomp5950/taser_slow_down

Tasers will now cause movement slow downs on the first hit