[ScreenOptions]
RomanFontName/String (was: lyxrc->roman_font)
SansFontName/String (was: lyxrc->sans_font)
TypewriterFontName/String (was: lyxrc->typewriter_font)
FontNorm/String (was: lyxrc->font_norm)
FontZoom/Num (was: lyxrc->zoom)
GeneralToolbar/Num (new, possible values: TOOLBAR_ALWAYS_VISIBLE, 
					TOOLBAR_AUTOMATIC, TOOLBAR_NEVER_VISIBLE)
MathToolbar/Num (new, possible values: TOOLBAR_ALWAYS_VISIBLE, 
				 TOOLBAR_AUTOMATIC, TOOLBAR_NEVER_VISIBLE)
TablesToolbar/Num (new, possible values: TOOLBAR_ALWAYS_VISIBLE, 
				   TOOLBAR_AUTOMATIC, TOOLBAR_NEVER_VISIBLE)
