[tldoc] Slovak and Czech po files update

[Karl Berry]

Hi Jan,

    please find attached updated files sk.po and cs.po 

Thanks, installed. 

Zdenek also sent an update to cs.po (yesterday).  Sorry, I did not feel
qualified to compare and contrast, and trust you two can amicably work
out any discrepancies.  I checked in his yesterday, and yours today.
You can see them both at
http://tug.org/svn/texlive/trunk/Master/tlpkg/translations/cs.po.

    I am sorry not using svn :(

No problem at all.

thanks,
karl