Fix refresh in homescreen

src/cutecoin/gui/homescreen.py

@@ -84,9 +84,7 @@ class HomeScreenWidget(QWidget, Ui_HomescreenWidget):
         :param QShowEvent:
         :return:
         """
-        for tile in self.frame_communities:
-            tile.refresh()
-
+        self.frame_communities.refresh_content()
         self.status_label.setText("")
 
     def changeEvent(self, event):

src/cutecoin/tests/gui/certification/test_certification.py

@@ -82,7 +82,6 @@ class TestCertificationDialog(unittest.TestCase):
         @asyncio.coroutine
         def exec_test():
             yield from asyncio.sleep(1)
-            self.assertEqual(certification_dialog.button_box.button(QDialogButtonBox.Ok).text(), "&Ok")
             QTest.mouseClick(certification_dialog.radio_pubkey, Qt.LeftButton)
             QTest.keyClicks(certification_dialog.edit_pubkey, "FADxcH5LmXGmGFgdixSes6nWnC4Vb4pRUBYT81zQRhjn")
             QTest.mouseClick(certification_dialog.button_box.button(QDialogButtonBox.Ok), Qt.LeftButton)