Make the choosing of properties work for XML documents about bitemp-explorer

[lrhruska]

Note to self:

We were talking about handling XML. You'll get back XML from your request, perhaps something like this:

<root>
  <times>
    <sys-start>…</sys-start>
    <sys-end>…</sys-end>
    <val-start>…</val-start>
    <val-end>…</val-end>
  </times>
  <content>
    <value>…</value>
  </content>
</root>

What you want to end up with is something like this:

{
sysStart: …,
sysEnd: …,
valStart: …,
valEnd: …,
value: …,
xml: '…'
}

<cards>
    ...
    <card id="3">
      <name lang="es"></name>
      <description lang="es"></description>
      <name lang="en"></name>
      <description lang="en"></description>
    </card>
    ...
</cards>

var $xml = $(xml),
name = $xml.find('name[lang="' + lang + '"]').text(),
desc = $xml.find('desc[lang="' + lang + '"]').text();