Add back in Adobe DTM for analytics

Author: jab-rh

_templates/_page_openshift.html.erb

@@ -25,6 +25,11 @@
   <meta content="OpenShift" name="application-name">
   <meta content="#000000" name="msapplication-TileColor">
   <meta content="https://assets.openshift.net/content/subdomain/touch-icon-precomposed.png" name="msapplication-TileImage">
+
+  <!-- Adobe DTM -->
+  <script src="//www.redhat.com/dtm.js" type="text/javascript"></script>
+  <!-- End Adobe DTM -->
+
   <script src="https://cdnjs.cloudflare.com/ajax/libs/html2pdf.js/0.9.3/html2pdf.bundle.min.js"></script>
 
   <script id="trustarc" src="https://static.redhat.com/libs/redhat/marketing/latest/trustarc/trustarc.js"></script>