Lua: Endless loop and no limit on memory

[GoogleCodeExporter]

The following will freeze forever:
function main()
  while 2 < 5 do
  end
end

Using too much RAM can crash after using up 2 GB of RAM:
array1 = {}
function main()
  local i = 1
  while i < 100000000 do
    array1[i] = {{{{{{{{{{}}}}}}}}}}
    i = i + 1
  end
end

A single {} might not crash Windows 32 bit, but will memory leak after LUA 
memory exception.

Allowing users to upload these levelgen can kill the server. Limiting LUA 
memory usage and execution time may solve this.

Original issue reported on code.google.com by sam8641@gmail.com on 12 Jan 2015 at 9:29

[GoogleCodeExporter]

Would also be nice to allow editor plugin users to (optionally) kill a 
long-running plugin.

Original comment by bkcon...@gmail.com on 20 Jan 2015 at 6:24