[Translators] Slovak translation for VLC 1.2.0

[Marián Hikaník]

Hello,
I finished today a first update for Slovak translation of VLC 1.2.0. All the new and edited strings are translated now (total: 5724). Please 
download the new .po file from www.mojepreklady.net/download/SK-translation-for-VLC-120.zip
and merge the translation. Then I will test the translation directly in VLC interface.

Thank you for your help. Best regards,

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Marián Hikaník