Up And Down And All Around

Added a workaround for Veinminer and other mods that may prevent EntityFloatingItems from being spawned, so that "Anti-Mass" can still be acquired when this happens
Added support for mismatching remote versions, so long as major and minor versions are the same (all 2.3.x versions will be compatible with each other now)
Added a display to gravity controllers that shows their currently active direction
Changed entity nameplates (should also affect tileentity nameplates) to rotate to match the client player's camera
Fixed nameplates of rotated players being displayed at weird angles (sometimes they could be completely invisible)