Using only sendData(data) function

Class name: TcpConnection

- Added port field to costructor
- Fixed mainHandler

- Created NetBridge class
- Created NetBridge implementation WifiBridge
- Added state determination to TcpConnection

mainHandler leaks

Added also NetworkTests activity

Connection now works

Broadcast packets on a multicast address, and receive responses back

- Added setter
- Calling onFailure in outer onError method

Create a thread factory for network threads

- Created ExpiringList class

- Show a list of discovered devices

- Added click behavior instead of select
- Added event listener for connection requests
- Removed useless class

`SocketInfo {address, name}`

ConnectionDialogFragment is displaying names instead of addresses

No longer throwing concurrent access exception

- Crashing when connecting
- Closing socket even if connected on ConnectTask exit

Devices are removed from the beacon device_list only through` Beacon#updateDevices()`.

If any device is removed, a callback `Beacon.OnEventListener#onDevicesTimeout(infoSet)` is called.

connection_fragment now modify his adapter only through these callbacks, avoiding  to clear the entire adapter each update.

…lly closed

- Class listener
- Initialize a wifi connection

- Tcp connection checks if can start connection
- NetAdapter and Wifibridge check if can start connection
- Renamed some symbols

NetAdapter.getSender() returns a Sender class which contains methods to send the desired data

Removing the name part after the first dot.
Example:  coolname.station.dunno  ->  coolname.

Beacon check if the PC response is valid or not. It also sends a string which will be checked by the PC.