Message 154410 - Python tracker

Whoops--I hadn't updated my repo since last year, and someone had already changed to :c:macro:, :c:func:, and :c:type:.  When will I learn!

Attached is a new diff with those changes, against revision @4c6662090870 (on the 2.7 branch).  Also, while I was in there, I made some minor edits to the start of the paragraph about "long/int Unification".  I think it's a slight improvement.