Added connection screen to allow users to select available hosts from a preconfigured list.

- Added ConnectionController for initial client setup
- Added RaceConnection class for socket data and checking
- Configures StartController with a socket drawn from a host table

#story[782]

visualiser/src/test/java/seng302/RaceConnectionTest.java

@@ -0,0 +1,30 @@
+package seng302;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.testng.Assert.*;
+
+/**
+ * Created by connortaylorbrown on 3/05/17.
+ */
+public class RaceConnectionTest {
+    private RaceConnection onlineConnection;
+    private RaceConnection offlineConnection;
+
+    @Before
+    public void setUp() {
+        onlineConnection = new RaceConnection("livedata.americascup.com", 4941);
+        offlineConnection = new RaceConnection("localhost", 4942);
+    }
+
+    @Test
+    public void onlineConnectionStatusReady() {
+        assertTrue(onlineConnection.check());
+    }
+
+    @Test
+    public void offlineConnectionStatusOffline() {
+        assertFalse(offlineConnection.check());
+    }
+}