WinOSI changes
-------------------
Version 1.3

Consolidate configuration dialogs into one tabbed dialog.

Completed disk image preview & creation in attach disk image menu.
Supports creation of 5.25 or 8 inch images, as well as giving a directory
of disk images when they are selected.

Enabled disk writing in emulator. 

Changed serial port speed to be based on emulated clock cycles instead
of system time. Changed options dialog to support 110 & 19.2K

Added disk drive indicators to bottom of screen showing track, selection
and write status.

C1/UK101 screen 64x16 doubles vertical pixels to match display aspect of
original systems.




Version 1.2
Rearranged menus to more closely match VICE emulator.

Fixed repaint issues in internal "debugger" dialog. Made dialog resizeable so
full stack & more disassebled instructions are visible

Implemented video preferences dialog
	-added RGB palette (default is OSI composite color palette)
	-added Black & White option
	-added Maintain aspect ratio option

Screen size & attribute changes can take effect under emulator control
Rewrote disk controller. It is now a class based on a PIA class which contains
a additional serial port code.

Enhanced keyboard emulation. Work around Windows detections problems of left & right
shift keys.

Initial work on directory of disk image upon load. Still not complete.

Implemented Simulated clock tick for 505 board 400ms clock. 
(This allows OSI dealer demo to work.)
