Enable 'Show' checkboxes by default

ui/qubemanager.ui

@@ -146,6 +146,9 @@
         <property name="text">
          <string>Running</string>
         </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
        </widget>
       </item>
       <item>
@@ -153,6 +156,9 @@
         <property name="text">
          <string>Halted</string>
         </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
        </widget>
       </item>
       <item>
@@ -160,6 +166,9 @@
         <property name="text">
          <string>Network</string>
         </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
        </widget>
       </item>
       <item>
@@ -167,6 +176,9 @@
         <property name="text">
          <string>Templates</string>
         </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
        </widget>
       </item>
       <item>
@@ -174,6 +186,9 @@
         <property name="text">
          <string>Standalone</string>
         </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
        </widget>
       </item>
       <item>
@@ -181,6 +196,9 @@
         <property name="text">
          <string>All</string>
         </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
        </widget>
       </item>
       <item>