* lib/rdoc/markup/attribute_manager.rb: Removed useless empty check.
* lib/rdoc/markup/to_markdown.rb: Support links from other formats.
* lib/rdoc/markup/formatter.rb: ditto.
* lib/rdoc/markup/to_html.rb: ditto.
* test/rdoc/test_rdoc_markup_formatter.rb: Test for above.
* test/rdoc/test_rdoc_markup_to_html.rb: ditto.
* test/rdoc/test_rdoc_markup_to_markdown.rb: ditto.
* lib/rdoc/rd/block_parser.rb: Improved footnote display. Worked
around bug in footnote conversion to Markdown.
* test/rdoc/test_rdoc_rd_block_parser.rb: Test for above.
* lib/rdoc/rd/inline_parser.rb: Fixed bug with emphasis inside
verbatim.
* test/rdoc/test_rdoc_rd_inline_parser.rb: Test for above.
* test/rdoc/test_rdoc_parser_rd.rb: Use mu_pp, use shortcut methods.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38418 b2dd03c8-39d4-4d8f-98ff-823fe69b080e