[Shotwell] Piwigo plugin - Apostrophe in the title field gives an error

[Thierry Le Guillou]

Hi all,
the Piwigo publishing plugin works very nicely now, even with french 
accentuated characters in the title of the picture.
But I have got "HTTP status code 405 Method Not Allowed"
when there is an apostrophe in the title like : Samsara's team

I have got the log file if necessary.
Thierry