We can finally have nice things

Much of the work since 3.0 has been fixing memory leaks and greatly improving performance in memory intensive situations.

3.0 - 3.2

• Use rAFPool npm pkg - #170
• Extract static admin && update deps - #169
• Fix scope memory leak - #168
• Fix calculation of viewport width - #167
• right left scrolling example - #127
• Update to 3.4 and resolve audit warning - #163
• Handle root with gaining sizzle properties - #162
• Do not cancel rAF as this effects other elements that are observed - #159
• Use one IntersectionObserver per viewport - #153
• Stop rAF loop if transition from page that uses rAF to page that uses IO - #152
• Ensure explicitly setting viewportUseIntersectionObserver is not allowed - #147
• use one rAF manager - #145
• Cancel animation frame before requesting again - #144
• add note about didExitViewport and intersectionThreshold - #143
• upgrade to 3.1 ember - #140
• Bugfix - send action on destroy + memory leaks - #138
• Add firefox to travis - #134

Pre 3.0

• Upgrade to 3.0 and remove jquery usage - #121