[dataimport] new ignore_errors argument to ucsvreader, default to False. Closes #2547200
What's new in CubicWeb 3.16?
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New functionnalities
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* Add a new dataimport store (`SQLGenObjectStore`). This store enables a fast
import of data (entity creation, link creation) in CubicWeb, by directly
flushing information in SQL. This may only be used with PostgreSQL, as it
requires the 'COPY FROM' command.
API changes
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Unintrusive API changes
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User interface changes
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* Remove changelog view, as nor cubicweb nor known cubes/applications were properly
feeding related files