Update changelog with 0.8.2 release

Aleksander Machniak

2012-10-06 e0a32884069d6d5bb3861640ca246fa6e1a09f70

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tinyMCE.addI18n('pt.advhr_dlg',{size:"Altura",noshade:"Sem sombra",width:"Largura",normal:"Normal",widthunits:"Unids"});