title: Ruby convert single quotes to double quotes in XML
body: <p>Despite the fact that XML attributs can be defined using single or double quotes, my user is trying to integrate my software with another one that will not accept single quoted attribut values.</p>
  
  <p>I user REXML to generate my XMLs.</p>
  
  <p>Is there a way to REXML generate double quoted attribute values?
  If not, is there a way for me to convert it easily?</p>
  
  <p>Thanks</p>