Fix the multiple braces in the HtmlTemplates as a results of abstraction
before.
Cleanup too many repetitive strings
Merge branch 'master' of https://github.com/ServiceStack/ServiceStack into upstream
Merge pull request #792 from prasannavl/upstream

Fix multiple braces in the templates after abstraction
Merge branch 'master' of https://github.com/ServiceStack/ServiceStack
Fix untested pull-request breaking all metadata pages
INCR to v3.9.56
Merge branch 'master' of https://github.com/ServiceStack/ServiceStack
Fix metadata break when any of the parameters return null due to the extra Format function
Merge branch 'upstream'