Rename quota to quota.debathena

The old debathena-quota installed as quota.debathena, and we must
do so too, for debathena-quota-config
Update packaging and bump version

- Delete debathena-locker-utils packaging, we're not using it.
- Rename debathena-python-locker-support to debathena-locker-support
- Install the scripts in /usr/bin for later packaging by the
  various binary packages
- Add binary packaging for attach, athdir, and quota
- Bump version to 10.4 to work around hilarious versionsed dependency
  issues with quota-config and other packages.  We have other versions
  as high as 10.3, so we go to 10.4.  Athena does not go up to 11.
- Bump source/format to 3.0 (quilt)
- Add manpages
Remove Debian packaging from master