Allow special characters in project descriptions so that text in languages other than english can be written normally.

[Brachamul]

While setting up a project in my language (French), I encountered the error :
The description contains invalid characters. Only letters, numbers, spaces, and common punctuation (- _ . : / () ' " , ! ? @ # % & + = [] {} | ~ ` *) are allowed.

The description I had written used characters such as "é" or "è". Preventing their use means I should either write all descriptions in English, or write descriptions with poor grammar, neither of which are ideal solutions.

Perhaps there is a good technical reason for this restriction, but if there is not, I believe this would be a nice, although minor, improvement.