XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Fix bug.
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Perform a better migration of Workspace Candidacies.
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Remove useless injects!
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Migration of Workspaces: Add the restoration of pages that was previously deleted by WorkspaceManager.Install.
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Migration of Workspaces: Add the restoration of pages that was previously deleted by WorkspaceManager.Install.
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Migration of Workspaces: Fix tests.
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Migration of Workspaces: Fix style
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Remove WikiManager.Style and put it on resources instead.
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Migration of Workspaces: Add the restoration of pages that was previously deleted by WorkspaceManager.Install.
Merge remote-tracking branch 'upstream/master' into new-wiki-api

Conflicts:
	xwiki-platform-core/xwiki-platform-wiki/xwiki-platform-wiki-user/xwiki-platform-wiki-user-default/src/main/java/org/xwiki/wiki/user/internal/WikiUserClassDocumentInitializer.java
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Migration of Workspaces: Add the restoration of pages that was previously deleted by WorkspaceManager.Install (bug fix).
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Migration of Workspaces: Add the restoration of pages that was previously deleted by WorkspaceManager.Install (bug fix).
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Migration of Workspaces: Bug fix.
XWIKI-9516: Create a new Wiki API that replaces xwiki-platform-wiki-manager and xwiki-platform-workspace.

* Fix descriptor cache bug.
* Add extension names in POMs.
Merge remote-tracking branch 'upstream/master' into XWIKI-9693
XWIKI-9713: The old wikimanager script service is still used in the platform
* Use the new wiki script service to display the wiki pretty name.
XWIKI-9476: Impossible to import a large wiki from a XAR
* disabled by default (too close to the final version to be enabled by default, will enable it in next version like I did for export action)
XWIKI-9476: Impossible to import a large wiki from a XAR
* really make it disabled by default
XWIKI-9717: Accidental refresh might block user in DW before repair step
* Enable the "previous UI" form before showing it.
XWIKI-9476: Impossible to import a large wiki from a XAR
* better handling of version and author