1 o Minor bugfixes (directory download scheduling):
2 - Remove the maximum delay on exponential-backoff scheduling.
3 Since we now allow an infinite number of failures (see ticket
4 20536), we must now allow the time to grow longer on each failure.
5 Fixes part of bug 20534; bugfix on 0.2.9.1-alpha.
6 - Use initial delays and decrements in download scheduling closer to
7 those from 0.2.8. Fixes another part of bug 20534; bugfix on