(cherry picked from commit b29a23b9)

XWIKI-18895: Inject the required skin extensions from the X-XWIKI-HTML-HEAD custom response header into the page HTML head automatically

(cherry picked from commit baaf16e5)

(cherry picked from commit 196df4e2)

See https://docs.npmjs.com/cli/v7/commands/npm-ci

  * Ensure to use the context component manager to look for converters
  * Provide a new test class for the listener

(cherry picked from commit 5de8856f)

XWIKI-18856: No notification is displayed for minor changes despite the minor event alert filter being off

  * Fix the AbstractMinorEventNotificationFilter to take into account
    the format when filtering
  * Refactor tests to follow best practices

(cherry picked from commit 9fe30c9f)

* add a revapi ignore

(cherry picked from commit 8c9c6857)

(cherry picked from commit c08952fe)

(cherry picked from commit 9f079dc0)

* add a revapi ignore

(cherry picked from commit 764f8ba2)

(cherry picked from commit df8bd49b)

(cherry picked from commit 96b52f5e)

  * Provide a new LinkParser component whose jobs is to allow extracting
    links from an XDOM
  * Improve MacroRefactoring role to allow extract links from a macro
    content or parameter
  * Improve DefaultMacroRefactoring to parse macro content for
    extracting links
  * Improve IncludeMacroRefactoring to extract links from macro
    parameters
  * Refactor XWikiDocument to rely on LinkParser
  * Improve existing integration test to check with various links to
    ensure backlinks are created in each case (standard link, default
macro link, nested macro link, image link, include macro parameter)

(cherry picked from commit eb7d809e)

  * Ensure to catch the right exception in the migration to detect the
    missing solr core

(cherry picked from commit b11e9531)

  * Use the classloader manager to use the right classloader for
    deserializing messages

(cherry picked from commit 86855db6)
(cherry picked from commit 96e5b9f7)

  * Specify that the like events are serializable

(cherry picked from commit 13dcaf5a)
(cherry picked from commit 290cde76)

This issue is mainly fixed thanks to XWIKI-18828 but we ensure here that
we don't get double notifications on cluster because of it.

(cherry picked from commit 20c16985)

  * Revert change related to DocumentUserReference#hashCode and equals.

(cherry picked from commit 0bd675dd)

  * Make changes so that UserReference implements serializable
  * Change a bit DocumentUserReference to make it serializable and use
    isGlobal value in equals/hashCode

(cherry picked from commit c282fe70)

* fix a mistake in the javadoc
* improve javadoc format

(cherry picked from commit 434ceef2)

XWIKI-18801: Docker-based tests overriding components failing when the build is executed with the "maven.build.dir" system property

  * Ensure to use the target output directory only if inside a container
    build

(cherry picked from commit 4d98bc81)

* Update regex used to parse object references and properties in the
  EditForm to support classes with spaces in their name

XWIKI-18722: Current wiki not passed to the context when calling a Livetable result template or page (#1655)

- Introduce a new internal component to initialize the wiki context according to the provided namespace
- Use this component when handling the request for live data entries
- Pass the current wiki id as the namespace in the Live Data client side request

XWIKI-18801: Docker-based tests overriding components failing when the build is executed with the "maven.build.dir" system property

  * Fix missing escape

Minor formatting fix in addition.

  * Refactor a bit the Authentication API to be more sound
  * Fix related tests

(cherry picked from commit 8f884c30)

* Since we cannot use List<PathSegment> (and neither List<String>) to get the list of URL-decoded space names from Restlet we have to parse the space names ourselves but for this we need the raw, URL-encoded, space path and for this we need to use the @Encoded annotation. This doesn't break the usage of the REST API. It affects only the resource implementations which all use the same API to parse the space path.

(cherry picked from commit 8c62f7be)

(cherry picked from commit bdcf9ee8)