Hatari version 0.45

This is just a minor release on the way to version 0.50 of the Atari ST emulator Hatari.
The following things have been changed since the last release 0.40:

- New build system (with a "configure" shell script).

- A disc image destroying bug in the MSA compression function has been fixed.

- It is now possible to redirect the printer output into a file.

- Experimental MIDI output support.

- Added the possibility to save memory snap shots.

- Pending HBL and VBL interrupts are now correctly emulated.

- Some speed improvements.

- GEMDOS HD emulation now also works with EmuTOS.