asn1x509 CRL.sign and GeneralName.dn/ldapdn bugfix

• src/asn1x509 1.1.1 to 1.1.2
  • GeneralName fix for dn and ldapdn of explicit.
    This have caused wrong GeneralName dn/ldapdn ASN.1
    encoding.
  • CRL.sign fix for init
• tool/tool_ca.html
  • subjectAltName extension support added.
  • subjectPublicKeyInfo setting fix.
• test/qunit-do-asn1x509
  • fix for CRL and GeneralName dn/ldapdn test
• npm/test/t_sig_rsasha1.js added