0.2: Original release
0.3: -Fixed runtime error when changing display size
     -Fixed runtime error when emulator started without ROMs
     -Fixed combobox in General Settings to be of type csDropDownList
     -Fixed hyperlink handling in About box
     -Implemented logic for stopping/restarting z80 when application loses/gains focus
     -Emulator uses higher thread priority THREAD_PRIORITY_HIGHEST (2 above normal) and 
      does not call Application.ProcessMessages. This helps with slower/older/crappy 
      display card machines. 
 
