[Tagging] John's import of towers/transponders

[Roy Wallace]

Re: John's recent important of man_made=tower nodes and
type=transponder relations from ACMA:

>> shouldn't the node's role be "tower", not "transponder"?
>> i.e. the *relation* represents the transponder (hence
>> type=transponder), but the *node* represents the *tower*, so should
>> have role=tower.

(e.g.: http://www.openstreetmap.org/browse/node/740881798)

I'm pretty sure my logic, above, is right - the role of the tower node
should be "tower", not transponder. Anyone disagree?