* Continue to investigate schemes for adding parity blocks for error
recovery.
+
+* Rename cumulus to cumulus-backup, and write a new Python program,
+simply called cumulus, to replace the functions in cumulus-util and act
+as a wrapper for cumulus-backup. Integrate automatic segment cleaning
+and backup expiration.
+
+* Write a module that allows duplicity storage backends to be used for
+cumulus.