* New helper ynh_secure_remove
A secure way to remove a file or directory.
Prevent to knew issues.
Tested with this paths:
- / -> Not removed
- /var -> Not removed
- /var/www -> Not removed
- /var/www/file -> Removed
- /opt -> Not removed
- /opt/file -> Removed
- /home/yunohost.app -> Not removed
- /home -> Not removed
- /home/ -> Not removed
- // -> Not removed
- /etc/cron.d/ -> Not removed
- /etc -> Not removed
- /etc/ -> Not removed
- /etc/X11 -> Removed
- /etc/X11/$var -> Removed (if $var is not empty)
* JimboJoe's typo fix