Fix contacts array when creating or updating client

[mehwoot]

The XPM API expects xml of the form

  <Contacts>
    <Contact>
      <Name>Jo Bloggs</Name>

inside a Client for creating contacts when updating. The code appeared to specify this, but actually .to_xml on a Hash works differently to expected, where an array type called Contacts will automatically have each entry wrapped with Contact. So the generated XML was looking like

<Client>
  <Name>Bob Bobus 2</Name>
  <Email>bob@hotmail.com</Email>
  <Phone></Phone>
  <GSTRegistered></GSTRegistered>
  <JobManagerID>1000237</JobManagerID>
  <Contacts type="array">
    <Contact>
      <Contact>
        <Name>bob bobus</Name>

Which meant it didn't work. This was only for creating contacts during client creation, which I gather nobody had used before.

[abreckner]

Ah interesting. I did not know that...