Renaming individuals

[chfleming]

Users are segmenting their data in the webapp, usually corresponding to different behaviors and it would be nice if they could rename the subsets to something like Cilla-summer, Cilla-disperal, Cilla-winter, instead of Cilla-1, Cilla-2, Cilla-3.

[xhdong-umd]

This feature look to be simple but implementation is not easy. I'll need to make the table editable, then update both telemetry objects and internal data frame. The edit may trigger another fresh of the summary table, and I need to make sure it doesn't break/change user's selection.