v0.2.1

• support responsiveness by watching for resize events (thanks to @anthony-mangano-argus)
• bug fix for small sticky elements
• add a poll task to fix occasional issues when IntersectionObserver does not catch a (small) sticky element

v0.2.0

• updates ember-in-viewport, which adds IntersectionObserver support
• removes jQuery code, allowing you to use this in a jQuery-less build