Atlas display for missing GeoIP info could be improved
When atlas can't find a GeoIP entry, it displays "null" for the AS number and name, and https://atlas.torproject.org/img/cc/.png for the image (which does not exist).
It would be better to use some sort of placeholder.
An example of a relay with this issue, as of 2016-11-13: https://atlas.torproject.org/#details/8FDE6EC5BBB9C275A276D45C3CC93A4A305048FA