remove unneeded [PruneCruft] and [ManifestSkip]
new option copy_file_from_release
fix incomplete test and use of wrong blessed()
replace direct uses of blessed()
TEMPORARY: Config::MVP::Assembler::WithBundles::_add_bundle_contents drops empty arrayref options
Dist-Zilla-PluginBundle-Author-ETHER-0.048

          - removed [PruneCruft], which does nothing useful with
            [Git::GatherDir]
          - removed [ManifestSkip] which does nothing useful when there is no
            MANIFEST.SKIP file
          - add an option for what files to copy from the release, for easier
            customization
          - added a dummy option for [Git::Check], to work around an issue in
            Config::MVP::Assembler::WithBundles::_add_bundle_contents