0.4
  - Always try to use native pinentry first before fallbacks
  - Add gpg_list_signatures() function
  - Refactor gpg_list_keys()

0.3
  - Add support for non-detached (clear/normal mode) signature
  - Rename some parameters for consistency
  - Support 'search' parameter in gpg_import (tnx Marius Pascariu)
  - Expose 'pinentry' function
  - Better out-of-the-box support for entering passphrases
  - Search for keys on multiple keyservers
  - Mention 'haveged' to solve freezing keygen problem

0.2
  - Initial CRAN release
