[Translators] Update for SK translation of VLC - please publish it

[Marián Hikaník]

Hello,
please merge my latest update of Slovak translaton for VLC. The translation for Android-version was merged (many thanks), but the update for 
the main version of VLC, was probably not uploaded to you server - I do not see it in the history.

The updated PO-file can you download on:
http://www.mojepreklady.net/download/VLC_SK_PO (5853).zip
This translation is based on the latest language file from: http://git.videolan.org/?p=vlc/vlc-2.0.git;a=blob_plain;f=po/sk.po;hb=HEAD

Please merge and upload the new translation, if it is possible. Thank you in advance.

-- 
Marián Hikaník