Fix possible header duplicates when using additional headers (#1489033)

Aleksander Machniak

2013-04-03 99edf8699a1b79cdb4a2398680f8f4e97292e2f3

1
tinyMCE.addI18n('is.paste_dlg',{"word_title":"Nota\u00f0u CTRL+V \u00e1 lyklabo\u00f0rinu til a\u00f0 l\u00edma textanum \u00ed ritilinn.","text_linebreaks":"Halda endingu l\u00edna","text_title":"Nota\u00f0u CTRL+V \u00e1 lyklabor\u00f0inu til a\u00f0 l\u00edma textanum \u00ed ritilinn."});