Entity:PhysicsInit* methods now return either true or false based on success

Entity:Remove() can no longer remove the world

Weapon:IsScripted() will now return false instead of no value when ran on non-scripted weapons

Player:Give( ... ) no longer fills a player's gun with ammo when asked to not give ammo to players

Entity:GetBoneCount() and Entity:GetBoneParent( ... ) will now return -1 on failure

Entity:TranslateBoneToPhysBone( ... ) will now return -1 on failure

Entity:SetSaveValue( ... ) now returns false on failure

Entity:DispatchTraceAttack( ... ) will now trigger an error when passed invalid parameters

Entity:HasBoneManipulations() and Entity:HasFlexManipulatior() return false on failure

Entity:GetBrushPlaneCount() will now return false on failure

Entity:GetFlexScale( ... ) now always returns 1 on failure, rather than just sometimes