This extension adds a <templatestyles> tag that, when placed
on a template, allows specifying CSS for pages where that
template is transcluded.
Unlike inline styles, the per-template CSS supports rules
with proper selectors, and @media blocks.
THIS VERSION DOES NOT CURRENTLY FILTER DECLARATIONS and is
therefore unsuitable for wikis where unprivileged users should
not be allowed to influcence the pagewide CSS in unrestricted
ways!
Bug: T483
Change-Id: Ibc1cae3079d164f7ac7bcc7c4ded3f02bb048614