EZP-23513: docbook schema: add link and id to embed
EZP-23513: docbook schema: add rules for nested links
EZP-23513: xhtml5 edit schema: add link and id to embed
EZP-23513: xhtml5 edit schema: add rules for nested links
EZP-23513: update conversion: docbook to ezxml
EZP-23513: update conversion: docbook to xhtml5 edit
EZP-23513: update conversion: ezxml to docbook
EZP-23513: update conversion: xhtml5 edit to docbook
EZP-23513: tests: nested links validation
EZP-23513: storage: resolve embed links
EZP-23513: converter: handle embed links
EZP-23513: tests: Link converter
EZP-23513: converter: extract embed's link parameters
EZP-23513: tests: Embed converter
EZP-23513: converter: implement normalizing EZXML input pre-converter
EZP-23513: container: update configuration for aggregate EZXML input converter
EZP-23513: tests: update EZXML to Docbook test for aggregate converter + add schematron rules
EZP-23513: tests: add schematron rules to xhtml5 edit to docbook converter tests
EZP-23513: templates: update RichText's templates for new params format
EZP-23513: tests: update embed fixtures for added xml:id