SUDOKU SOLVER - TODO

	- Add generation choices to Game->New (Empty, easy, medium, hard)
	- Add Game->Settings (colors, homepath)	
	- Add Undo/Redo

	- [SOLVED] Save As overwrite warning still shows the original filename	
	- [SOLVED] Disable the built-in 'overwrite' warning in the Save As dialog, use the same warning for Save and Save As.
	- [SOLVED] Have the Move->Validate option tell if the sudoku can be solved through constrains, full search, or not at all	
	- [SOLVED] Fix homedir business on WIN32 (uses Application data)
	- [SOLVED] Add windows exe icon
	- [SOLVED] Add status bar
	- [SOLVED] Add confirm dialgs on Quit and New
	- [SOLVED] Remove sidebar buttons
	- [SOLVED] Move->Step solves rules only. Have it search for a solution and pick a solved cell. 
	           Solved by adding the Move->Guess option.
	- [SOLVED] Mark invalid input
	- [SOLVED] Add Help->About
	- [SOLVED] Incorporate validate() into the menu
	- [SOLVED] Incorporate validate() into the menu
	- [SOLVED] Have the options in the Move menu call validate() before solving