TextBlockTextRenderer: added wordWrap property, defaulting to false like TextFieldTextRenderer and BitmapFontTextRenderer
TextBlockTextRenderer: performance and runtime error defenses for very short widths.
Panel: added missing checks for flags to ignore header and footer resizing (reference #739)
MetalWorksMobileTheme: re-enabled word wrap on alert message, now that it's supported in TextBlockTextRenderer
MetalWorksMobileTheme: switched to cff rendering mode for better looking text on mobile