Clean app upgrade (#193)
Clean app upgrade (#193)

* [mod] current_app_dict == new_app_dict so test is always false

* [mod] simplify condition\n\nUntestedgit add -p

* [mod] useless variable

* [mod] rename variable

* [mod] app_dict can't be None (exception is raised instead)

* Adding debug message for upgrade

* Using app_list to list installed apps

* [mod] pep8

* [mod] please opi

YunoHost/moulinette-yunohost,YunoHost/yunohost,YunoHost/yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost,YunoHost/yunohost,YunoHost/yunohost