Moves every check regarding the imported file outside of import.py into
the validator. Also removes every follow-up checks regarding it out of
import.py.
Looks a whole lot cleaner now!
Validates now the timestamp in the import.py, doesn't insert users into
the sqlite-database before creating the systems account and checks now
for existence in the database too(unapproved users, who comes first,
gets his name first..)
and delete occurences in Import It is much tidier to look at and
doesn't clutter the Script. Is even a whole seperate task
so it does make no sense to call it in Backup when i think about it.
this could potentially result in a endless recursion when the
table isnt writeable and a lot other funny things happen
but normally and in 99,999999999% of our cases this
is totally fine
--Import depends on --file being present pointing to a valid CSV-file
that contains unique users with id's. When a user already exists
with his id, the script will fail.
It is also Backup.py-only which is reflected in the help message
test it yet and also have to do a whole lot more. e.g. write out in dry-mode
which commands are getting to run in serious-mode but build up together
correctly in the correct order
