function isValidFilename(filename) {
        // Fix issue adobe#13099
        // See https://github.com/adobe/brackets/issues/13099
        return !(
            filename.match(_invalidChars)|| filename.match(_illegalFilenamesRegEx)
        );
    }
Returns true if this matches valid filename specifications.
See http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx

TODO: This likely belongs in FileUtils.

@param {string} filename to check
@return {boolean} true if the filename is valid