Merge branch 'wip-MDL-38347-stable23' of git://github.com/phalacee/moodle into MOODLE_23_STABLE

lib/outputlib.php

@@ -483,7 +483,10 @@ class theme_config {
                 $this->rarrow = '▶';
                 $this->larrow = '◀';
             }
-            elseif (false !== strpos($uagent, 'Konqueror')) {
+            elseif ((false !== strpos($uagent, 'Konqueror')) 
+                || (false !== strpos($uagent, 'Android')))  {
+                // The fonts on Android don't include the characters required for this to work as expected.
+                // So we use the same ones Konqueror uses.
                 $this->rarrow = '→';
                 $this->larrow = '←';
             }