rdesktop v.1.9.0

[Pierre Ossman]

The final release of rdesktop v1.9.0. No issues were reported for the
beta, so this release is identical.

It's been several years since a last major release of rdesktop, but now
it's finally time. This means there has been lots and lots of changes,
too many to reasonably list here. But these are the main changes
included in this release:

* Use GnuTLS and nettle instead of OpenSSL
* Improved certificate handling
* Add support for dynamic resize of sessions
* Add support for alpha cursors
* Add PulseAudio support
* Add Kerberos support on macOS
* Kerberos support no longer requires libgssglue
* Remove support for rdesktop's custom microphone extension
* Several fixes to improve compatibility with modern desktops
* macOS compatibility fixes
* Improved handling of redirections
* Many smart card bug fixes
* Many disk redirection bug fixes
* Improved logging
* Lots of other small bug fixes

The release is available for download here:

https://github.com/rdesktop/rdesktop/releases/tag/v1.9.0

- The rdesktop team