2.0 (2018-12-04)

• orphaned project adopted by Michał Trojnara
• ported to OpenSSL 1.1.x
• ported to SoftHSM2
• add support for pkcs11-based hardware tokens
  (Patch from Leif Johansson)
• improved error reporting of timestamping errors
  (Patch from Carlo Teubner)