<http://schema.org/image>
<https://static1.squarespace.com/static/567aecb71115e084cc4cee26/t/56d5fcdfc2ea512ffe9e1036/1475007973543/>
<https://bestpractical.com/blog/2009/10/netgooglecode-now-with-support-for-googles-issues-api>