• Remove the matryer/try dependency, see #842
• Remove temporary files used by the CmdMinifier afterwards
• Change default permissions to 755 for directories and 644 for files, see #842
• JS: revert isNaN(x) => x!=x to keep isNaN(x); see #790 fixes #839
• CSS: use Version and deprecate KeepCSS2 option, see #840