Using QtSql instead of sqlite3 to access data -- might change this back but trying to set up a good data model.

Also subclassed QListView so we can eventually implement fading by age in the list view.

res/modes_rx.ui

@@ -456,10 +456,6 @@
        </property>
       </widget>
      </widget>
-     <zorder>group_input</zorder>
-     <zorder>group_output</zorder>
-     <zorder>groupBox</zorder>
-     <zorder>groupBox</zorder>
     </widget>
     <widget class="QWidget" name="dashboard">
      <attribute name="title">
@@ -841,7 +837,7 @@
      <string>Show ADS-B-equipped aircraft only</string>
     </property>
    </widget>
-   <widget class="QListView" name="list_aircraft">
+   <widget class="ModeSFadingListView" name="list_aircraft">
     <property name="geometry">
      <rect>
       <x>15</x>
@@ -867,6 +863,13 @@
   </widget>
   <widget class="QStatusBar" name="statusbar"/>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ModeSFadingListView</class>
+   <extends>QListView</extends>
+   <header>air_modes.modesfadinglistview</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections/>
 </ui>