LPS-33359 - Upgrade ehcache to 2.6.5

Conflicts:

	lib/versions.html
LPS-33359 - Removing ehcache JGroupReplication support

Conflicts:

	lib/versions.html
LPS-33359 - SF
LPS-33273 Replace redirect title in referring pages when referred page is moved to the trash
LPS-33273 SF
LPS-33344 Fix constants inconsistences in LicenseManager & LicenseManagerUtil
LPS-33344 Deprecate LicenseManagerUtil because I'm not sure where Amos is using them. Next time he adds a new constant he'll know to change to use the new one.
LPS-33344 Fix constants inconsistences in ResourceActions & ResourceActionsUtil
LPS-33344 Deprecate ResourceActionsUtil because this is an old class that is available in portal-service
LPS-33344 Fix constants inconsistences in UsersAdminUtil
Revert "LPS-33344 Fix constants inconsistences in UsersAdminUtil"

This reverts commit 6ed8f1a5fb31b8dd58d8081f6c6e3aed54dc83f6.
LPS-33344 Fix constants inconsistences in PluginPackage & PluginPackageUtil
LPS-33344 PluginPackage SF, no need to deprecate this one because PluginPackageUtil is in portal-impl and not portal-service so less chance of a plugin using it
LPS-33344 Fix constants inconsistences in Sites & SitesUtil
LPS-33344 Fix constants inconsistences in Trash & TrashUtil
LPS-33344 TrashImpl already has access to all vars in Trash
LPS-33344 Fix constants inconsistences in DiffUtil
LPS-33344 Revert changes to DiffUtil, this whole class is already deprecated, so no need to fix constants like that.
LPS-33344 Fix constants inconsistences in ClusterLink & ClusterLinkUtil
LPS-33344 Deprecate ClusterLinkUtil constant because we don't know if any plugins are using it since it's in portal-service