It will be replaced by what is currently called 'offset_bytes'

The old attribute was deprecated in swh.model 0.7.2

This is what the current code inlined is doing already. This code was anterior
to the function being born in swh.core.config

For some reason, the previous commit ended up messing pip while
selecting the extras of swh.core to be used, making it not select the
[http] extra.

Mixin SWHConfig is deprecated.

Related to T1532

'swh' being the new master command group (defined in swh.core); so:

  swh deposit --help

works. The 'admin' (deposit server management) is only available if the
swh.deposit[server] optional package is installed.

Ensure the 'swh-deposit' still works for now.

Related T1034

Related T565

Related T335
Related T933

Related T871

swh-core, swh-loader-tar

Related T857

Goal: Reducing dependencies

The actual dependency to the current code does not depend on the
latest yet.

Fix missing runtime dependencies on swh-*.

WIP, this still needs:
- integration testing (manual so far)
- clean up routine
- scheduler api interface (for now this uses celery directly)