update to new mods version 3.7

Description

New mods version is approved (January 4th 2018). To use this new features we need a schema update in mycore-mods. For details see http://www.loc.gov/standards/mods/changes-3-7.html

Environment

None

Assignee

Jens Kupferschmidt

Reporter

Kathleen Neumann

Labels

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URL

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External issue ID

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Components

Fix versions

Priority

Medium
Configure