Minor update 8/18

[list] [*] Fixes/improvements to reduce enemies teleporting directly on top of players [*] Fix for enemies sometimes making the return trip to the bar between encounters [*] Rework ghost dash physics, now much better at dashing through small barriers/obstacles and no longer gets stuck on cover objects [*] Add a "ghost leech" passive that adds recovery when ghost dashing through enemies [*] A rare loot barrel event has been added [*] Added support for "-skipintro" commandline argument to always skip the intro cinematic on startup [/list]