Service refactoring: move location management to the LocationHandle.

Tests refactoring: location and service tests re-worked.

src/main/java/de/dennisguse/opentracks/services/handlers/HandlerServer.java

@@ -0,0 +1,47 @@
+package de.dennisguse.opentracks.services.handlers;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import de.dennisguse.opentracks.content.data.TrackPoint;
+
+public class HandlerServer {
+    private String TAG = HandlerServer.class.getSimpleName();
+
+    private LocationHandler locationHandler;
+    private HandlerServerInterface service;
+
+    public HandlerServer(HandlerServerInterface service) {
+        this.locationHandler = new LocationHandler(this);
+        this.service = service;
+    }
+
+    public void start(Context context) {
+        locationHandler.onStart(context);
+        locationHandler.onSharedPreferenceChanged(context, null, null);
+    }
+
+    public void stop(Context context) {
+        locationHandler.onStop(context);
+    }
+
+    public void onSharedPreferenceChanged(Context context, SharedPreferences preferences, String key) {
+        locationHandler.onSharedPreferenceChanged(context, preferences, key);
+    }
+
+    public void sendTrackPoint(TrackPoint trackPoint, int recordingGpsAccuracy) {
+        service.newTrackPoint(trackPoint, recordingGpsAccuracy);
+    }
+
+    public interface HandlerServerInterface {
+        void newTrackPoint(TrackPoint trackPoint, int gpsAccuracy);
+    }
+
+    public interface Handler {
+        void onStart(Context context);
+
+        void onStop(Context context);
+
+        void onSharedPreferenceChanged(Context context, SharedPreferences preferences, String key);
+    }
+}