Added Support for Empty Quick Create Name

The default name of the content created by the QuickCreateDialog is now read from the QuickCreateSettings.properties . To support empty names, the key _default_newDocumentName_text_ can be overwritten with an empty value. This way, the editor is forced to set a custom name.

(CMS-19596)

Added Support for Multiple External Previews

IPreviewUrlTransformer functions can be applied to the external preview URL now too. Only the protocol, host and port of the transformed URL will be applied to the external preview URL, since the context path will remain the same for all preview CAEs and parameters are not relevant here.

This feature is disabled by default so that only the default preview CAE will be used for the external preview. To enable the IPreviewUrlTransformer execution for the external preview URL, change the following flag to true :

ExternalPreviewImpl.ENABLE_PREVIEW_URL_TRANSFORMATION = true;

(CMS-19347)