Merge remote-tracking branch 'origin/QA_4_5' into QA_4_5

ChangeLog

@@ -94,6 +94,7 @@ phpMyAdmin - ChangeLog
 + issue #11414 Unclear export options / organization / hierarchy
                Set minimum required PHP version to 5.5 (older versions are EOL)
 - issue #11407 ALTER TABLE failing on import when table exists
+- issue        Do not export `sys` database when exporting server 
 
 4.4.15.0 (not yet released)
 - issue #11411 Undefined "replace" function on numeric scalar

libraries/display_export.lib.php

@@ -61,10 +61,7 @@ function PMA_getHtmlForExportSelectOptions($tmp_select = '')
     }
 
     foreach ($GLOBALS['pma']->databases as $current_db) {
-        if ($current_db == 'information_schema'
-            || $current_db == 'performance_schema'
-            || $current_db == 'mysql'
-        ) {
+        if ($GLOBALS['dbi']->isSystemSchema($current_db, true)) {
             continue;
         }
         if (isset($_GET['db_select'])) {