Fix error when spell-checking an empty text (#1489831)

Aleksander Machniak

2014-04-25 a54cff4c569f74f7ec1b2ab8379b7ad1820a8af9

1
tinyMCE.addI18n('nn.simple',{"cleanup_desc":"Rens grisete kode","redo_desc":"Gjer om","undo_desc":"Angre","numlist_desc":"Nummerliste","bullist_desc":"Punktliste","striketrough_desc":"Gjennomstreking","underline_desc":"Understreking","italic_desc":"Kursiv","bold_desc":"Feit"});