Add decorative frames to command center, launchpad, and storage facility editing widgets.
Add individual up_to_*_view buttons to start cleaning up some TODOs.
Use the up_to_*_view buttons.
Add a clear sort button and push functionality into it.
Update Changelog.
Make buildings_tree_view and buildings_list_store act more like the newer tree views I've built. This moves tight coupling into the view and the store and away from the view and its parent widget.