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This is just a beginning.

Dominant use case is to receive things from excel, which
means the manual edition is actually embedded within
mostly "automatic" data. Very different from a carefully
crafted insert ...

So we'll keep the habit of computing the manual insertions
by diffing automatic against the base (synthetic).

tests: make sure we work around https://bitbucket.org/zzzeek/sqlalchemy/issues/4289/automatic-index-name-hash-collision


Fix is in tshistory.

namespaces: make sure the `automatic` and `manual` namespaces are properly related to the base namespace

We build a 'manual' namespace.

This may be useful if we want to use older versions of the original
serie but *still* keep applying the editions over it.

We now don't need the very complicated logic/code we had.

Resolves #1

Unfortunate effect: positional calls have to be fixed.