Dependencies have to be uninstalled at the last

Dependencies of a package are installed first followed by the main package itself which is the correct behavior. But uninstallation should be in the reverse. Main package has to be uninstalled first followed by its dependent packages. This will be useful if the main package's custom post-uninstall action uses a VI from the dependent package. Also if there is some issue with the uninstallation process the main package will not be left alone without its dependencies.