This fixes some of the problems dch was causing:
- Putting the stable log in the wrong place
- Updating the date unnecessarily
Change stable-update.sh to be a wrapper for stable-update.
Delete ckt-stable-update.sh; if we need it again in future, it can be
implemented more cleanly as part of the new script.
The version parsing was fine but we had 3.x hardcoded in the URL.
Assume that each major version gets a new directory from now on.
svn path=/dists/trunk/linux/; revision=22558