MDL-30298 coursereport_completion: adds outer wrapper with class no-overflow to report table so as to enable horizontal scroll

course/report/completion/index.php

@@ -333,6 +333,7 @@ if(!$csv) {
         exit;
     }
 
+    print '<div id="completion-progress-wrapper" class="no-overflow">';
     print '<table id="completion-progress" class="generaltable flexible boxaligncenter completionreport" style="text-align: left" cellpadding="5" border="1">';
 
     // Print criteria group names
@@ -704,6 +705,7 @@ if($csv) {
     exit;
 }
 print '</table>';
+print '</div>';
 print $pagingbar;
 
 print '<ul class="progress-actions"><li><a href="index.php?course='.$course->id.