Increased priority to handle explosions before McMMO
Changed ExplodedBlockManager and BurntBlockManager's initialization from static loader to a method called in CreeperHeal.
Fixes the problem of trying to register a task when the plugin is disabled if no explosion happened before shutdown.
Removed loading dependency for PlayerHeads, as it is no longer used.
Added a specific method to replace all burnt/exploded blocks in every world.
Small improvement when checking for burnt blocks to replace.
Fixed fire listener not being registered if it is the only grief protection.
removed useless listener.
Switched class scheduling method from scheduleRepeating... to runTimerTask... and added a possibility to refresh the block replacement rate.
Added a new command to set the replacement rate. Renamed 2 commands.