Try to guess the server URL

As the mobile team did, let the user just enter a domain name and we will try to guess the final URL:

• domain.com => https://domain.com:8080/nuxeo (fallback on HTTP if not secure)
• 1.2.3.4 => https://1.2.3.4:8080/nuxeo (fallback on HTTP if not secure)

Of course, any variant ill be handle too.