small updates

• pemtojwk and jwktopkcs8 added to sample node scripts
• asn1 1.0.9 to 1.0.10
  • ASN1Util.getPEMStringFromHex modified not to use
    CryptoJS.
• test/qunit-do-*.html
  • test case reference fix
• remove ext/{md5,ripemd160,sha1,sha256,sha512}.js,
  ext/THIRDPARTY_LICENSE.pjhash.txt for
  Paul Johnston's Hash Algorithm JavaScript