Bump version (1.3.1)
Bump version (1.3.1)

dzenbot/DZNSegmentedControl,xhacker/DZNSegmentedControl,xhacker/DZNSegmentedControl,smallmuou/DZNSegmentedControl,smallmuou/DZNSegmentedControl,smallmuou/DZNSegmentedControl,sprylogics/DZNSegmentedControl,xhacker/DZNSegmentedControl,bellchen/DZNSegmentedControl