Add Groovy transformer support for loading Folder's config.xml for Folder templates
Progressively render instances of a job template to make page loading faster.
[ZD-11729] In builder/publisher transformers, make sure we substitute build variables and thus create a derived instance, rather than relying on such variables being substituted as environment variables.
[ZD-10734] Better robustness when a builder template is deleted even though still in use.
[ZD-11992] Be clear that only some shell script transformers support #! syntax.