Merge pull request walkermatt#258 from adrelino/activation-mode-option

Add activation mode option (open the panel via mouseover or click)

Bump to v3.5.0

Merge pull request walkermatt#257 from adrelino/reverse-option

Adds 'reverse' option defaulting to true.

Bump version to v3.3.0

Release option to collapse groups

Bump version (addition of static renderPanel and sidebar example)

Bump version to v3.0.0 - Support for OpenLayers v5

Update to v2.0.0

Support for ol package and hosted build

Merge branch 'tonimc-FixControlStyles' closes walkermatt#56

Add scroll example to readme and bump version. Closes walkermatt#18

While the changes to accommodate scrolling are fairly small and there
have been no changes to the JS API I've bumped to v1.1.0 due to the
CSS changes (button is hidden when panel is shown, extra classes
introduced).