TextInput: fixed positioning of text editor when multiline (closes #931)
Panel: added outerPadding properties (closes #926)
MetalWorksDesktopTheme: uses new outerPadding property on Panel/Alert
TextBlockTextRenderer: fixed issue where truncation on lines after the first happened too early (closes #932)
NumericStepper: added textInputGap and buttonGap properties (closes #661)
docs tweaks