- Fix FileSystem::isAbsolute(path) which didn't work
- Fix FileSystem::GetExtension(const char* path) which didn't work
- For a relative path "dofile(path)" and "loadfile(path)" script function search now in the files of the current server application, then in parent, etc.. until application folder (what is the normal behavior of dofile or loadfile).
- For a "name.lua" path, "require(path)" executes now in first a dofile, and if it fails it searchs a library (normal behavior of require).