v0.5.0

• StickyScrollUp: fix issue on retina displays in Edge where the component slowly fades out of the page [a246ed3]
• StickyScrollUp: fix issue where in rare situations the component disappears completely when scrolled fast up and down [75b6f11]
• Sticky: add defaultOffsetTop property to component to define an offset between the viewports top and the element in sticky mode [31a0ec4]