Unescaped accents and other special characters

[timbakkum]

Hi there,

Thanks for your awesome plugin. I have come across a simular issue a year ago when i was working on a French WordPress site : https://wordpress.org/support/topic/broken-on-392 . I found out that certains characters with accents and other characters like quotes weren't escaped properly causing the javascript to break. As you can read in the link, I found out have to fix this problem manually by removing all accentuated characters and quotes from the French language file. But now a year later, the plugin still hasn't been updated to escape these characters properly. It would be nice if you could include a fix for this in the next update of the plugin, so that we don't have to keep editing the language files manually, and so that we can have proper French strings with quotes and accents.

Thanks in advance