avoid GSOD at images which are not OpenPLI based
only OpenPLI enigma2 has the 'toggleAllSelection' attribute
for 'SelectionList' object
add german translation
Persian translation added , translated by Mehdi from Persian Professioansl
Merge pull request #1 from persianpros/master

Persian translation
add italian translation by Diamondear
add cs translation by @Roxy ; small cosmetic in de translation
locale: add Polish translation
pl.po: cosmetics

had to shorten one translation which didn't fit within the button...
Merge pull request #2 from blzr/master

Polish translation
de translation: tiny cosmetic
Merge remote-tracking branch 'e2openplugins/master'