Revert "*8603* include article galley links in CrossRef export"

This reverts commit 71c342796cbfd7859bdfed684c07f0650fb3bfa4.
Revert "*8601* Update CrossRef DTD to 4.3.3"

This reverts commit d87739c72a6286a21818470eb78ad3efc5359d12.
Merge pull request #129 from jwhitney/ojs-stable-2_4

*8605* Use hierarchical headings on editorial team page