0.5.5 Fix symbolize_keys function Fix Nokogiri parser for the same attr and inner element name
https://wiki.gentoo.org/wiki/Project:Ruby/Pending_Bumps#multi_xml_0.5.5 Fails tests without dev-ruby/ox, but also fails when it is installed, in a different way.
Tests pass with the current version of dev-ruby/ox, so multi_xml 0.5.5 is now in the tree.