Making csv download links more accessible (Bug #1266913)

Sorted on:
--  Administration -> Users -> User search -> Get reports
--  Administration -> Institutions -> Statistics

Change-Id: I81e7def9a003e95c2a40651c08d7cdfede0eda89
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>

htdocs/lang/en.utf8/admin.php

@@ -271,6 +271,7 @@ $string['userstatstabletitle'] = 'Daily user statistics';
 $string['groupstatstabletitle'] = 'Biggest groups';
 $string['viewstatstabletitle'] = 'Most popular pages';
 $string['exportstatsascsv'] = 'Export statistics in CSV format';
+$string['downloadstatsascsv'] = 'statistics in CSV format';
 $string['nostats'] = 'No statistics available';
 $string['site'] = 'Site';
 
@@ -1022,6 +1023,7 @@ $string['uneditableusers'] = array(
     1 => 'You selected %s users that are not editable by you. They have been removed from the list.',
 );
 $string['exportusersascsv'] = 'Export users in CSV format';
+$string['downloadusersascsv'] = 'users in CSV format';
 $string['Download'] = 'Download';
 $string['suspendusers'] = 'Suspend users';
 $string['Suspend'] = 'Suspend';

htdocs/theme/raw/templates/admin/users/report.tpl

@@ -24,7 +24,7 @@
   {if $csv}
   <div class="fr">
     <span class="bulkaction-title">{str tag=exportusersascsv section=admin}:</span>
-    <a href="{$WWWROOT}download.php" target="_blank">{str tag=Download section=admin}</a>
+    <a href="{$WWWROOT}download.php" target="_blank">{str tag=Download section=admin} <span class="accessible-hidden">{str tag=downloadusersascsv section=admin}</span></a>
   </div>
   {/if}
   <h2>{str tag=selectedusers section=admin} ({count($users)})</h2>

htdocs/theme/raw/templates/admin/users/statistics.tpl

@@ -23,7 +23,7 @@
   {if $subpagedata.table.csv}
   <div class="fr">
     <span class="bulkaction-title">{str tag=exportstatsascsv section=admin}:</span>
-    <a href="{$WWWROOT}download.php" target="_blank">{str tag=Download section=admin}</a>
+    <a href="{$WWWROOT}download.php" target="_blank">{str tag=Download section=admin} <span class="accessible-hidden">{str tag=downloadstatsascsv section=admin}</span></a>
   </div>
   {/if}
   <div id="statistics_table_container" class="statistics-subpage-{if $subpagedata.summary}right{else}full{/if}-column {if $subpagedata.table.count == 0} hidden{/if}">