Trouble installing WFFM. Get invalid item name message.

Needed to disable item name validation by renaming a patch config file to .disabled

File name: Sitecore.MVC.HA.Prevent_Invalid_ItemName.config.disable

======Contents of the file ===========

<!--

Purpose: This include file defines special chars to be exluded for any item name

-->
<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
  <sitecore>
    <settings>
      <setting name="InvalidItemNameChars">
        <patch:attribute name="value">\/:?&quot;&lt;&gt;|[]$</patch:attribute>
      </setting>
    </settings>
  </sitecore>
</configuration>