1103232 - Document importer settings.

https://bugzilla.redhat.com/show_bug.cgi?id=1103232
I think this should be "2.4" instead of "latest". It does introduce a maintenance burden at release time of a new "x.y", but I think that's worth it. As-is, when we release 2.5, you can be browsing the 2.4 docs and unexpectedly end up in the 2.5 docs.