== 0.4 (Vanguard 1, alternative)
* Add fallback API support by focus/blur hack to all browsers.

== 0.3 (Explorer 1, answer)
* Rename gem to visibilityjs.
* Fix gem integration with Asset Pipeline paths.

== 0.2 (Sputnik 2, Laika)
* Rename support() to isSupported() and notPrerender() to afterPrerendering().
* Fix IE 6 and 7 support.
* Documentation fixes by Peter Zotov.

== 0.1 (Sputnik 1, the first)
* initial release.