man2html: Apply Debian patches (part 5: man2html).

man2html: Apply Debian patches (part 5: man2html).

It is a final patch for debian patch series.
This commit applies a following patch (to man2html program):
011-man2html-doctype-status.patch
  Add DOCTYPE and `Status:' header to man2html
012-man2html-TH.patch
  Accept troff macros in .TH line (closes: #180335).
013-man2html-file-link.patch
  file:/path --> file:///path
018-man2html-quotes.patch
  Add support for \(lq and \(rq escape sequences (closes: #338339).
019-man2html-noindex-segfault.patch
  Fix segfault on man pages with no sections (see bug #349907).
020-man2html-escape_N.patch
  Add support for \N'n' groff sequences (closes: #348553).
021-man2html-perl_modules.patch
  Add support for Perl modules (closes: #363384).
  Patch by Nicolas François.
023-man2html-double-quotes.patch
  Properly decode double quotes inside the quoted text (closes: #406098).
024-man2html-uncompress.patch
  Add support for uncompressing gzipped man pages.
  If the requested page does not exist, try to serve gzipped one instead (closes: #418771).
025-man2html-macro-all-args.patch
  Handle \$* and \$@ escapes.
026-man2html-macro-longname.patch
  Support macro names longer than two chars (closes: #408232).
027-man2html-macro-priority.patch
  Parse user-defined macros before the global ones (closes: #5587).
028-man2html-segfault.patch
  Fix segfault when viewing groff(7) page.
029-man2html-new-macros.patch
  Handle \[xx] escapes and add a few commonly used char/string definitions.
031-man2html-BR-empty-line.patch
  Ignore font change requests that are note followed by any words (closes: #489181).
033-gcc-warnings.patch
  Fix some gcc warnings.