Fix #142 get date filter on request arguments
When only the marker is given, go to its year

It should not be possible if the whole URL is copied, but if only the
marker ID is given, then change the date range to the marker's year.
remove supptrters in acccident dialog (cleanup for launch)
Fix bug with date range filter update

When clicking the date range icon to open the menu and then selecting a
filter, the filter applied but it was not shown in the text input.
Now it does.
Fix #154 place marker in my location and search result