Revert "Ensure we always have a start date for recurring tasks."

This reverts commit d78131805b1319db1227e8d6c69b524bbc45da21.
Revert "BFN"

This reverts commit a94aeedb3f9611215bd5a7d6a35f839978b15dbb.

Conflicts:
	nag/docs/CHANGES
	nag/package.xml