Small update and ajustments

Some minor changes and a few fixes and a gift for the undead playing crowd.

• New skill for undead. Cheat Death (Requires level 20). From skills info text: You have a chance that an attack which would otherwise kill you will instead reduce you to 10% of your maximum health. In addition, all enemy damage taken will be reduced by up to 90% for 3 sec. This effect cannot occur more than once per minute.
• Temporary fix for the occasional bomb exploding after a new round has started.
• Tranquility cast time changed to 1 second instead of 2.
• Fixed entangle roots end sound to only play if the target is still alive.
• Fixed level sound to only be emitted if the player is alive.
• Fixed the level command showing wrong information.
• All dependencies on the engine, cstrike and fun modules have been removed and replaced by fakemeta and hamsandwich.