Tailor Topology Tab view to the new object model

Also refactor collecting topology data a bit and fix ugly-looking
links between topology nodes and too long `type` attr pop-up.

Any entity of object model which has dictionary under system key '?'
with keys 'type' and 'id' produces a single node. If entity doesn't
have an explicit name, it will be generated from that entity's key
(plus index, if it is a list's element).

Change-Id: I4b241aabdda906e256135d412200ff8868a77dff
Closes-Bug: #1304897
Merge "Tailor Topology Tab view to the new object model"