Fix multiple spaces in em tags containing three or fewer words

gistfile1.rb

html.css('em,strong').each do |e|
	if e.content.split.length <= 3
		e.search('//text()').each do |n|
			if ends_with_space
				n.content = n.text.gsub(/^\s/,"\u00A0")
			end
			n.content = n.text.gsub(/(?<=[\s\u00A0])\s/,"\u00A0")
			ends_with_space = n.text.match(/\s$/)
		end
	end
end