Move decision over what files MemoryHole is interested in from the Mercurial implementation to source mirrors. API still questionable, and "source mirrors" will be a bad name once we start versioning namespaces and resources.
Add Inpsect Presenter for the main MemoryHole UI. Move the add button to the left and make the cancel buttons work.
Color heading if addition or removal.
Version>>mirrors is supposed to return a map...
Remove dead imports from VCSCore.