Fix conflict dialog to finish the container activity if BACK is pressed

src/com/owncloud/android/ui/dialog/ConflictsResolveDialog.java

@@ -109,6 +109,11 @@ public class ConflictsResolveDialog extends SherlockDialogFragment {
         }
     }
     
+    @Override
+    public void onCancel(DialogInterface dialog) {
+        mListener.ConflictDecisionMade(Decision.CANCEL);
+    }
+    
     public interface OnConflictDecisionMadeListener {
         public void ConflictDecisionMade(Decision decision);
     }