[Talk-ca] Trunk highways.

[James Ewen]

I was looking at the Canadian tagging page, and saw that they have a
list of ways that should be trunk. One of them is the highway from
Edmonton to Fort McMurray, so I clicked along the way, and turned it
into a trunk rather than just primary. There were also a bunch of
problems, due to some unnamed individual merging ways that shouldn't
have been.

I still need to promote highway 28 to Cold Lake to meet the list of trunk ways.

James
VE6SRV