3.1.6 Released

Change Log

Closed issues:

• SegmentedButton visibility issue #18
• Android Studio crashing on set scale in xml file #17
• Layout In which this group is used does not show a preview #15
• SegmentedButtonGroup background is being ignored #14
• [Feature Request] Handle buttons visibility #13

Merged pull requests:

• Implement showing & hiding buttons #20 (addisonElliott)
• Added support for VectorDrawable #19 (spike07)