--User changes

-Add variations filter/selection dialog.

--Bug fixes
 -Fix summary window not properly indicating the presence of pose affine.
 -Remove a file named Fractorium.aps which had been erroneously committed a year ago.

--Code changes
 -Use qobject_cast instead of dynamic_cast where appropriate.
 -Add more override keyword where appropriate.
 -Add variations list to settings for filter dialog.

Source/Fractorium/Fractorium.ui

@@ -6198,6 +6198,7 @@ SpinBox
    <addaction name="separator"/>
    <addaction name="ActionOptions"/>
    <addaction name="separator"/>
+   <addaction name="ActionVariationsDialog"/>
   </widget>
   <action name="ActionNewFlock">
    <property name="icon">
@@ -6528,6 +6529,18 @@ SpinBox
     <string>&amp;Reset Workspace</string>
    </property>
   </action>
+  <action name="ActionVariationsDialog">
+   <property name="icon">
+    <iconset resource="Fractorium.qrc">
+     <normaloff>:/Fractorium/Icons/table_gear.png</normaloff>:/Fractorium/Icons/table_gear.png</iconset>
+   </property>
+   <property name="text">
+    <string>Variations</string>
+   </property>
+   <property name="toolTip">
+    <string>Show variations filter window</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>