Stupid yolopatch for not-normalized app path settings >_> (#1141)
Stupid yolopatch for not-normalized app path settings >_> (#1141)

* Update app.py
* Be more careful (c.f. _normalize_domain_path code ... maybe the path doesn't start with / either ..)
* Annnnnd ignore case where path is '/' which is fine
YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost,YunoHost/yunohost,YunoHost/moulinette-yunohost,YunoHost/yunohost,YunoHost/yunohost,YunoHost/yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost