Log Message:
Changes 0.9.0:
* New features:
  * Add +D disk interface support
  * New floppy disk controller emulation for +D and Beta disk
    interface emulation
  * Add Pentagon 512 and Pentagon 1024 emulation
  * Add Hi-Fi beeper for improved reproduction of multi-channel beeper
    tunes (e.g. Fairlight 2, Wham - the Music Box)
  * Add support for saving tape images without using tape traps
  * Add support for loading from WAV tape images
  * Add support for saving CSW tape images and TZX direct recording
    blocks
  * Allow distinction between "soft" resets (activating the reset line
    on the Z80) and "hard" resets (pulling the power)
  * New ALSA sound driver
  * AmigaOS support
  * MorphOS support
* Emulation core improvements
* Machine specific improvements
* Various other minor bugfixes