Edge frequency stats

[bestchai]

Clicking on an edge should list not just the latency between the events for the edge and their details, but also statistics about the distribution of edges that are similar to this edge.

Some questions to answer:

• What edges are considered similar? e.g., could be 'all edged between these two thread', or 'add edges between events of this type', or the conjunction of the two definitions.

• What statistics are most meaningful to surface? e.g., min/mean/median/max, or a more nuanced approach like the intervals frequency distribution visualization

[Issue created by bestchai: 2016-12-02]