* Write .sisorc from js and warn if siso_cache_dir is not set. * Remove auto-directory setting. * Remove try/catch around mkdirSync as it doesn't throw when dir exists. * Use path. * Adjust writeFileIfModified to not create empty files.
* Write .sisorc from js and warn if siso_cache_dir is not set. * Remove auto-directory setting. * Remove try/catch around mkdirSync as it doesn't throw when dir exists. * Use path. * Adjust writeFileIfModified to not create empty files.