LPS-30964 Upgrade JournalStructures to DDMStructures

Conflicts:
	portal-impl/src/com/liferay/portal/upgrade/UpgradeProcess_6_2_0.java
	portal-impl/src/com/liferay/portal/upgrade/v6_2_0/UpgradeJournal.java
LPS-30967 Upgrade JournalTemplates to DDMTemplates

Conflicts:
	portal-impl/src/com/liferay/portal/upgrade/v6_2_0/UpgradeJournal.java
LPS-30967 mass refactoring, still contains a but when a journal structure ID can conflict with an existing ddm structure key
Test Fixes - plugins/testtransaction
LPS-32595
LPS-32595
LPS-32400
LPS-32400
LPS-32400 Source formatting
Test Fixes - portal/controlpanel/users
Test Fixes - portal/controlpanel/users
LPS-31784 Move exportReferencedContent logic to DDM Data Handler (only copy-paste, no logic changes)
LPS-31784 Update journal data handler to use DDM
LPS-31784 Update calls from other handlers
LPS-31784 Update ddmStructure-uuid to ddm-structure-uuid, and ddmTemplate-uuid to ddm-template-uuid
LPS-31784 Rename portlet preference templateId to ddmTemplateKey because of LPS-31444
LPS-31784 Source formatting
LPS-31784 Use ddmStructurePath for var name
LPS-31784 Use ddmTemplatePath for var name
LPS-31784 Simplify name