updated version and fixed utf8 encoding

hshcourselist.php

@@ -45,5 +45,16 @@ if (!empty($course)) {
         $courses->close();
     }
 }
-header('Content-Type: application/json');
-echo json_encode($output);
+header('Content-Type: text/plain');
+echo json_encode(utf8ize($output));
+
+function utf8ize($d) {
+    if (is_array($d)) {
+        foreach ($d as $k => $v) {
+            $d[$k] = utf8ize($v);
+        }
+    } else if (is_string ($d)) {
+        return utf8_encode($d);
+    }
+    return $d;
+}
\ No newline at end of file

version.php

@@ -25,5 +25,5 @@
 
 
 $plugin->component = 'block_hshcourselist';
-$plugin->version = 2019041001;  // YYYYMMDDHH.
+$plugin->version = 2019082301;  // YYYYMMDDHH.
 $plugin->requires = 2016112900; // YYYYMMDDHH.
\ No newline at end of file