Importing the full library would double the jar size... its way too large.
So lets just import the basic int/long based collections to then use
to improve performance on these kind of collections.
EntityHangings make a somewhat extensive calculation ever 100 ticks to check if they should die (obstruction etc). This patch makes this magic number configurable, allowing server owners to pick how often they want EntityHangings (e.g. ItemFrames) to tick. Higher values may provide a performance boost for Hanging-heavy servers.
