rkwarddev: don't loop through an empty optionset body

git-svn-id: https://svn.code.sf.net/p/rkward/code@4938 7936002b-cd1d-0410-9ce3-d7ebf93b5162
rkwarddev: final change before the 0.06-5 relase, allow non-maintainers to not need an email address in the <about> node

git-svn-id: https://svn.code.sf.net/p/rkward/code@4939 7936002b-cd1d-0410-9ce3-d7ebf93b5162
rk.power: ready for an updated release

git-svn-id: https://svn.code.sf.net/p/rkward/code@4940 7936002b-cd1d-0410-9ce3-d7ebf93b5162