fix lobby bug for anons
pt "Português" translation #2576. Author: Migsan10.
el "Ελληνικά" translation #2586. Author: Γιάννης Ανθυμίδης / Yannis Anthymidis. s/Challenge to play/Challenge to a game
ca "Català" translation #2588. Author: Joanot-Martorell.
hu "Magyar" translation #2607. Author: Én.
update ca translation
uk "українська" translation #2633. Author: dimon4eg. Translate
Conflicts:
	conf/messages.uk
pl "polski" translation #2634. Author: Anonymous.
cs "česky, čeština" translation #2635. Author: Anonymous.
hu "Magyar" translation #2637. Author: Anonymous.
Conflicts:
	conf/messages.hu
nl "Nederlands, Vlaams" translation #2644. Author: Anonymous.