Clickables - Edge Glow

This is a PR for Scott (he hasn't been given Github access yet).

Related Issue - https://projects.cecs.pdx.edu/issues/2673

Note: There are links to a dolphin.png and dolphinhover.png which will cause HTTP 404 because they are not in the 'src/web/img' directory/repo/submodule. We need a designer to provide an info item that we can place on a wall in the current map.