Return information on a treenode connector edge.

Return information on a treenode connector edge.

Returns a JSON array with elements representing information on the matched links. They have the following form:

{ "user": ..., "creaetion_time": ..., "edition_time": ... }

Developer node: This function is called often (every connector mouseover) and should therefore be as fast as possible. Analogous to user_info for treenodes and connectors.