- Use boost::filesystem::path consistently for referring to files. - Use boost::filesystem streams for I/O, such that paths are always handled correctly. - Use stringToPath and pathToString for conversion between strings and boost::filesystem::path, to ensure we have consistent unicode handling across platforms and environments. The default constructor and string conversion uses platform-dependent encoding, depending on the global locale set in the application, which causes problems. So, unless you are in platform dependent code, the default constructor and string() function should not be used. When constructing paths from other paths (e.g. using operator/), also use stringToPath (instead of string arguments) if the path can contain unicode characters. Change-Id: If286bd9e71c8414afc0b24ba67e26ab7608ef6ea