zr_infect now infects mother zombie if used before it has spawned.

* Fixed a serious bug that could delay the game, the round end checker took dead clients in the count, so 1 dead ct and 9 zombies didn't end the game.
* Small typo fix in anticamp, and got rid of a warning.

src/zr/weapons/weapons.inc

@@ -335,7 +335,7 @@ WeaponsOnRoundEnd()
  * 
  * @param index     The weapon index.
  */
-WeaponsClearCache(index)
+stock WeaponsClearCache(index)
 {
     // Get array handle of weapon at given index.
     new Handle:hWeapon = GetArrayCell(arrayWeapons, index);