[panxiaohai]

Tank can throw a special infected instead of a rock.


Requirement: SDK Hooks 1.3

update:
1. tank can throw tank and himself.

"l4d_tank_throw_si", "15.0", "the chance of a rock become a special infected [0.0, 100.0]"

"l4d_tank_throw_hunter", "10.0", "weight of throw a hunter [0.0-10.0]"
"l4d_tank_throw_smoker", "5.0", ""
"l4d_tank_throw_boomer", "5.0", ""
"l4d_tank_throw_charger", "10.0", ""
"l4d_tank_throw_spitter", "5.0", ""
"l4d_tank_throw_jockey", "10.0", ""
"l4d_tank_throw_tank", "2.0", "weight of throw a new tank"
"l4d_tank_throw_self", "10.0", "weight of throw tank himself "

"l4d_tank_throw_tankhealth", "1000", "the new tank 's health"


2. fix problem about stuck.