D7 version will not be able to rely on taxonomy term menu path

Issue Summary

Due to:

#503456: Remove multiple tid and depth handling for core taxonomy paths

The D7 version of this module will have to either rely on a callback provided by Views, or to provide the callback and generate the "multiple terms" results page itself. Up until now, taxonomy_browser has always simply relied on the built-in path provided by the core taxonomy module.

Just putting this in as a TODO item, which should be addressed if and when this module gets upgraded to D7.