Add docs link to loadingstrategy
Remove olx and interfaces from docs sidebar
Skipped features support to ol.source.ImageVector
Merge pull request #2185 from elemoine/imagevector

ol.source.ImageVector doesn't skip features
Merge pull request #2157 from probins/loadstrat

Add docs link to loadingstrategy
Merge pull request #2173 from probins/sidebar

Remove olx and interfaces from docs sidebar
Remove ol.easing.elastic and ol.easing.bounce

And move the code to the animation example
Merge pull request #2188 from fredj/easing

Remove ol.easing.elastic and ol.easing.bounce
Rename ol.structs.RBush#forEach to ol.structs.RBush#some