Feature request: Include wiki macros for placing backlog lists

[dtwaling]

platform: # supported: 2.2.4, 2.3.2
backlogs: # supported: 1.0.5
ruby: # supported: 1.9.3, 2.0.0

This may seem redundant with all the various ways you already provide for access to backlog items, however this would be a really great feature to have based on the way we use and provide access to our Redmine instance.

What I picture is something like the backlog lists on the sidebar in the issues view. Then just enter a parametrized macro to drop list views in my primary wiki, and have a few options for what list level to display in addition to the flat lists you include in the Issues sidebar. (Ideally it include a project parameter; similar to syntax used for placing a link or block from an external proj wiki)

I keep lists manually now, but with this feature I would no longer need to manually maintain the lists in the wiki.