If the location URL contains a hash of either:
* #z/x/y
* #x/y
In the first case it will zoom and pan to the location;
in the second case it will only pan while maintaining the
current (or last used) zoom level.
If the location URL does not contain a hash in one of those
formats, the marker will be removed from the map.
A button in the help dialogue takes the user to the
/feed/… frontend URL, where the latest development
activity is shown, taken from the GitLab RSS feed
for the project.
It can show:
- all events (this could get slow);
- a single sequence;
- a set of sequences;
- a single date;
- a range between two dates.
It does not (yet) do pagination and filtering is local only.
