Patch: Online multiplayer & co-op fixes

- Fixed wall ("hand") invites not providing proper connection
- Added UPnP support; If you're having a connection problem, you can turn it on on your Internet router
- Fixed bosses not giving axions and items to the second player in co-op
- Fixed invisible enemies when spawned from Room Controllers
- Fixed an issue of upgrading a conductor without a weapon
- Fixed the environment loading issue after death in co-op
- Reduced boss Ozyormy Goija's front and back slams' areas of effect
- Moved the unreachable item in Arisen Palace
- Fixed the Antigravity Module
- Added the missing Underworld fog gate in Alma Mater
- Fixed music not sounding properly on stereo/surround systems

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Patch: Online multiplayer connectivity fixed

- The online multiplayer fix is live: added port sniffing and switching to increase connectivity
- Fixed invisible enemies in the co-op mode
- Fixed a few localization mismatches
- Fixed the invincibility while interrupting teleportation
- Fixed the horde not showing under some circumstances
- Fixed the infinite loading screen when connecting online
- Removed the unneeded fog gate before Uthos in the Underworld
- Fixed an issue where you could teleport to the arena of a revived boss
- Fixed an issue where you couldn't face Nemundis if called from the council on 150% data
- Made the heal upgrade shareable in the co-op mode
- Re-enabled erasing game saves
- Tweaked some Twitch integration vote effects
- Made neutral NPCs immune from attacks landed in the co-op mode

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Patch: Boss fight fixes

- Fixed the Ozyormy Goija boss fight
- Fixed a softlock when teleporting to the arena of a revived boss
- Fixed a softlock when beating the Sentient before the Disciple

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Patch: Returning missing items

- Fixed firearms and catalysts in the online multiplayer
- Fixed omnicube replication in the online multiplayer
- Fixed a crash happening when two attacks were being executed at the same time while in online co-op
- Fixed a potential lock up when attacking with a melee weapon and a firearm at nearly the same time