Load ckeditor for html-nugget (#27)

Need still to be tested and adapted for other editors

include/functions_entries_admin.inc.php

@@ -154,6 +154,7 @@ function serendipity_printEntryForm($targetURL, $hiddens = array(), $entry = arr
 }
 
 function serendipity_emit_htmlarea_code($item, $jsname, $spawnMulti = false) {
+    # init == true when already editor was already initialized
     static $init = false;
     global $serendipity;