l10n: Updated Polish (pl) translation to 100%
l10n: Updated Polish (pl) translation to 100%

New status: 37 messages complete with 0 fuzzies and 0 untranslated.

Transmitted-via: Transifex (www.transifex.net).

smart2128/lxmenu-data,lxde/lxmenu-data,lxde/lxmenu-data,smart2128/lxmenu-data