Increased timeout time in AsyncWorkQueue to fix possible dispose issues.
Added extension method DateTime.ToUnixTime()
Added net hooks: ChatText and SendTileSquare.
Added MetadataHandlerBase.RequiresMetadataInitialization()
Fixed some bugs and improved some methods of TerrariaUitls.Items / Npcs / Tiles.
Small refactorings.
Upgraded to TShock 4.0.5.
Version tick 1.9.
Added ChestOpen hook.
Added JsonUnixTimestampConverter.
Release 1.9.