Removed bloated methods used to determine player invincibility and poison and converted to new status effect system. Also removed "Poisoned for X seconds!" message on HUD and resized box; this will be replaced with an icon system that will show the user his current status effects. These status effects will "fade out" from view until gone by having their opacity set to a percentage determined by current time divided by expiration time. Modified a few classes to compensate for change to status effect system.