avoid warnings in android.shared project

mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/logging/ExLog.java

@@ -7,8 +7,6 @@ import java.util.EnumSet;
 import java.util.concurrent.ArrayBlockingQueue;
 import java.util.concurrent.BlockingQueue;
 
-import com.sap.sailing.android.shared.BuildConfig;
-
 import android.content.Context;
 import android.provider.Settings.Secure;
 import android.util.Log;

mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/ui/activities/BaseActivity.java

@@ -4,5 +4,6 @@ import android.support.v7.app.ActionBarActivity;
 
 public abstract class BaseActivity extends ActionBarActivity {
 
-    private static final String TAG = BaseActivity.class.getName();
+    // TODO what is this planned for?
+//    private static final String TAG = BaseActivity.class.getName();
 }

mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/util/Lists.java

@@ -11,6 +11,7 @@ public class Lists {
         return new ArrayList<E>();
     }
 
+    @SafeVarargs
     public static <E> ArrayList<E> newArrayList(E... elements) {
         int capacity = (elements.length * 110) / 100 + 5;
         ArrayList<E> list = new ArrayList<E>(capacity);