UI extension point for document content footer

[surli]

@surli

Regarding names, I slightly prefer afterContent since contentFooter might be a bit ambiguous with the actual pageFooter .

I’m changing my mind about that because:

1. the actual file for this is naming contentfooter.vm
2. this content is output if the velocity variable $displayContentFooter is set to true (see xwiki-platform/xwiki-platform-core/xwiki-platform-flamingo/xwiki-platform-flamingo-skin/xwiki-platform-flamingo-skin-resources/src/main/resources/flamingo/layoutvars.vm at master · xwiki/xwiki-platform · GitHub)

So it will be easier to reuse the same name.