NumericStepper: claims exclusive touch so that it won't repeat when parent container scrolls (closes #904)
MetalWorksMobileTheme: added missing . character for numeric stepper input (references #893)
Themes: NumericStepper buttons stay in down state on roll out
NumericStepper: improved auto-measurement of TextInput when supporting non-integers
TextInput: properly dispatches a fallback FOCUS_OUT event when there's a focusManager, but isFocusEnabled is false (references #879)
NumericStepper: fixes to ensure that the value is always correctly updated when the text input loses focus (closes #879)
Slider: uses ExclusiveTouch to ensure that the thumb dragging won't drag a parent container and that the paging doesn't repeat when touching the track and the parent container starts scrolling