Uppercase titles in x-ref to Refentry children (closes #1215547;

Uppercase titles in x-ref to Refentry children (closes #1215547;
thanks to Jens Granseuer for reporting the problem).

::PROBLEM::
Titles of all first-level sections in man pages are always
rendered in uppercase. But cross-references to those titles are
not uppercase.

::FIX::
Cross-references to titles of all first-level sections of Refentry
output are now rendered in uppercase; that is, titles in x-refs to
Refnamediv, Refsynopsisdiv, Refsect1, and any Refsection that is a
direct child of Refentry.

Also, x-ref to Refnamediv now uses the localized "NAME" title
instead of the using the first Refname child. This makes the
output inconsistent with HTML and FO output, but for man-page
output, it seems to make better sense to have the "NAME". (It may
actually make better sense to do it that way in HTML and FO output
as well.) That said, I guess it's not likely that most people
would put in an x-ref to a Refnamediv section, so maybe it's kind
of a moot point...