- Add a new test input message for a new test identity, test scenario
configuration and a test key.
- While retrieving message payload, determine charset based on the
Content-Type header. When missing, default to UTF-8.
- Use more comprehensible variables names.
- Adjust logging levels.
Since it's not so easy to encrypt a message exactly the same way twice, we
only verify if the message has been encrypted or not.
Introduce minor changes to the library itself, because it doesn't work very
well with modern GnuPG.
Also, include GnuPG directory (pointed at by --homedir option).
