[GeoNetwork-devel] schematron update

Hi all, I would like to update the schematron processing we are using
to the latest one (ie. ISO 19757-3).

This will improve error reporting with assert and report for each
rules. I've also fixed some missing gco:nilReason checks on ISO rules.
Instead of GeoNetwork schematron errors description, I suggest to use
schematron validation reporting language (SVRL) which contains more
details on each errors (eg. xpath).

Any comments on that ? Maybe we could have a talk on that during next
IRC meeting.

Ciao.

Francois