RFC 5126 CAdES long term signature support

• Changes between 4.6.0 to 4.7.0 (2014-Jul-07)
  • RFC 5126 CAdES format supported
    • CAdES-BES/EPES/T support in this version.
  • asn1cades (NEW)
  • asn1tsp 1.0.0 to 1.0.1
    • AbstractTSAAdapter, Fixed/SimpleTSAAdapter class added
  • asn1cms 1.0.1 to 1.0.2
    • SigningCertificate and SigningCertificateV2
      attributes are added.
    • IssuerAndSerialNumber class constructor now
      supports PEM string of certificate.
    • properties dDigestAlgs and dCerts of SignedData object
      are added for object preservation.
    • CMSUtil.newSignedData now supports
      SigningCertificate/V2 attributes.
  • asn1
    • add DEREnumerate class
  • x509
    • fix for strict mode
  • crypto
    • fix for Signature.signHex/Str