ConditionalEvents

-Added item_meta_variable_enabled option in the config. Disable it if you are not using the %item_meta% variable on any event, since storing this value causes lag in big servers.

-Added silent:true parameter to /ce reset, /ce disable, /ce enable and /ce interrupt commands.

-Added %random_last% global variable that returns the latest generated random number using the %random__% variable.

-Added %player_attack_cooldown% global variable that returns the current cooldown for the player's hand.