Version 0.5 - Game Modes, Steam Invites and More!

Added Game Modes: Rival Crews, Conquest and Freeplay.
Steam Invite functionality for Private Games.
Added knockback to the Captain on most types of hits.
Player Markers are only shown for human players.
Player Marker UI moves to your next spawn after dying.
Modifyarrs added to add or remove all Player Markers.
Disconnecting in character select removes players.
Macro protection for Rowboat rowing speeds.
Lowering Sheathe / Unsheathe SFX volume.
UI navigation bugfixes.
Character animation stalled frame fixes.
Various gameplay bugfixes.