Leaking variables

[SuperIzzo]

Hi, I run ATL under strict and it showed that a few variables are being accidentally defined in the global namespace.

Here are the 3 I got so far:

Error: lib/atl/TileLayer.lua:381: assign to undeclared variable 'str'
Error: lib/atl/Map.lua:248: assign to undeclared variable 'heightOffset'
Error: lib/atl/TileLayer.lua:151: assign to undeclared variable 'rot'

It also reports TILED_LOADER_PATH, but I'm not sure there is a way to avoid that

[Kadoba]

Thanks, I'll look into this.