(packageReinstall) and UI access have been tested successfully with a
variation of different situations including:
+ Reinstall a package for which no other packages depend
+ Purposefully do thinks like reinstall a package that is not installed
+ Try to reinstall a package which other installed packages still depend
NOTE: There is no "force" used; if a package is required by other packages,
it will not be uninstalled (and therefore no reinstall is done).