v1.5.1

This release includes some improvements and bug fixes✨ 🎉 ✨

Improvements

• Allow subclassing FloatingPanelController #173
• Add a sample code for panels in PageViewController #172
• Rename backgroudView with containerView in FloatingPanelSurfaceView

- public var backgroundView: UIView!
+ public var containerView: UIView!

• Remove obsolete SWIFT_WHOLE_MODULE_OPTIMIZATION setting from FloatingPanel.podspec
• Fix typo

Bugfixes

• Fix the mask bounds of the surface view #190
• Fix touch cancelling on first tap after a moving animation #164

Thank you to @zntfdr for your improvements!
Thank you to @xysverma, @GerdC, @peterstojanowski, @RpX974, @congmn and @ThangTruong921 for your helpful issue reports and cooperations!