Android port usage 8444 - virtual host protocoll extension

[ChristianeMussmacher]

See stack trace from #1030

Some Android user reported that it is not possible to send or receive files, when being connected to WLAN network unless port 8444 is open

As discussed in last team meeting, we need to investigate the following two possible approaches:

• SNI implementation (on Android use HttpsUrlConnection instead of Apache HTTP Client)
  • https://developer.android.com/training/articles/security-ssl.html
  • http://stackoverflow.com/questions/5879894/android-ssl-sni-support
  • http://android-developers.blogspot.de/2011/09/androids-http-clients.html
• New / second IP address for accessing file server