Use class 'visitor-marker' and id 'v-'+nr for visitor markers
Add removeMarker()
First (messy) implementation of dynamic tags
Renaming
Add mkId() and stripIdPrefix()
Use epc for identifying tag elements
More abstraction for signal markers (new name for ranges)
Dynamically add/remove signal markers + Cleanup
Automate exports assignments
Dynamic signal handling + Refactoring of signal recency code

Signals are removed from the tag state as soon as they become ancient.
Visualise signal staleness with dash pattern
Varied colors for unknown tags + Cleanup
Make distinction between testCoord and coord + Cleanup
Add basic button selector for showing/hiding max antenna ranges