Lua Runtime

The license has been changed to clearly state it's for later versions of LGPL. Identify licenses clearly!

The code has been reorganized which includes:

• MainClassClient and MainClassServer have been renamed to LuaRuntimeClient and LuaRuntimeServer respectively. If you make extensions to this mod, update your code to point to them.
• Minecraft is now a seperate class of MainClassClient. If you make extensions to this mod, also update your code to MainClassClient.Instance.LuaInstance.getMainMenuListeners()

Whenever a script error occurs, a dialog appears. (it won't appear if you are in-game or if you are in a server)

A thread that calls tick only once while starting the game, and does nothing after that, has been removed. It was accidentally left in the code.

When adding a command, the callback is also called with a table that contains SendFeedback.