clarify what interactive means
do not set dynamic_config => 1, as per #toolchain discussion today
check the syntax of the feature name, as it is tighter than I would have expected
new pluginbundle includes TK automatically
Dist-Zilla-Plugin-OptionalFeature-0.005

          - no longer setting dynamic_config => 1 -- it is generally the CPAN
            client that interrogates the user, not Makefile.PL/Build.PL
          - detect invalid syntax in feature name (e.g. spaces are not
            permitted), in case the dist isn't validating its metadata syntax
            itself