Added Tomáš Vadina as Slovakian translator

THANKS

@@ -145,6 +145,7 @@ Nikita E. Shalaev <nshalaev(at)eu(dot)spb(dot)ru> - ru_RU
 stat.c <Static-Const(at)yandex(dot)ru> - ru_RU
 Andrew Drynov <adryno(at)gmail(dot)com> - ru_RU
 John Wehin <john(dot)wehin(at)gmail(dot)com> - ru_RU
+Tomáš Vadina <kyberdev(at)gmail(dot)com> - sk
 Jože Klepec <joze(dot)klepec(at)siol(dot)net> - sl
 Tony Mattsson <superxorn(at)gmail(dot)com> - sv
 Gürkan Gür <seqizz(at)gmail(dot)com - tr

src/about.c

@@ -70,6 +70,7 @@ const gchar *translators[][2] = {
 			   "Rafael Peregrino da Silva <rperegrino@linuxnewmedia.com.br>"},
 	{ "ro", "Alex Eftimie <alex@rosedu.org>" },
 	{ "ru_RU", "brahmann_ <brahmann@pisem.net>,\nNikita E. Shalaev <nshalaev@eu.spb.ru>" },
+	{ "sk", "Tomáš Vadina <kyberdev@gmail.com>" },
 	{ "sl", "Jože Klepec <joze.klepec@siol.net>"},
 	{ "sv", "Tony Mattsson <superxorn@gmail.com>" },
 	{ "tr", "Gürkan Gür <seqizz@gmail.com>"},