Update iso690-author-date-fr.csl

Delete ANON. for documents with no author (bibliography sorted by title).
Small bug fixes on some fields display.
Update iso690-author-date-fr.csl
Update iso690-author-date-fr.csl
Update iso690-author-date-fr.csl
Update iso690-author-date-fr.csl
Update iso690-author-date-fr.csl
Update iso690-author-date-fr.csl
Update iso690-author-date-fr.csl
Update iso690-author-date-fr.csl
Merge pull request #518 from grolimur/patch-18

Update iso690-author-date-fr.csl