Add 'open System tab' for some pages

Change '`System Panel`' to '`System` tab', and add 'open `System` tab'
for "dashboard_manage_instances.rst" and "dashboard_set_quotas.rst".

Change-Id: I4eca222abadeadb2797ff1abd223ea5cc9eb1748
Closes-bug: #1499804

doc/user-guide-admin/source/dashboard_manage_flavors.rst

@@ -75,7 +75,7 @@ Update flavors
 
    Choose the :guilabel:`admin` project from the drop-down list at
    the top of the page.
-#. In the :guilabel:`Admin` tab, open the :guilabel:`System Panel`
+#. In the :guilabel:`Admin` tab, open the :guilabel:`System` tab
    and click the :guilabel:`Flavors` category.
 #. Select the flavor that you want to edit. Click :guilabel:`Edit
    Flavor`.
@@ -90,7 +90,7 @@ Update Metadata
 
    Choose the :guilabel:`admin` project from the drop-down list at
    the top of the page.
-#. In the :guilabel:`Admin` tab, open the :guilabel:`System Panel`
+#. In the :guilabel:`Admin` tab, open the :guilabel:`System` tab
    and click the :guilabel:`Flavors` category.
 #. Select the flavor that you want to update. In the drop-down
    list, click :guilabel:`Update Metadata` or click :guilabel:`No` or
@@ -156,7 +156,7 @@ Delete flavors
 
    Choose the :guilabel:`admin` project from the drop-down list at
    the top of the page.
-#. In the :guilabel:`Admin` tab, open the :guilabel:`System Panel`
+#. In the :guilabel:`Admin` tab, open the :guilabel:`System` tab
    and click the :guilabel:`Flavors` category.
 #. Select the flavors that you want to delete.
 #. Click :guilabel:`Delete Flavors`.

doc/user-guide-admin/source/dashboard_manage_host_aggregates.rst

@@ -21,8 +21,8 @@ To create a host aggregate
    Choose the admin project from the drop-down list at the top of the
    page.
 
-#. On the :guilabel:`Admin` tab, open the System Panel and click the
-   :guilabel:`Host Aggregates` category.
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab and click
+   the :guilabel:`Host Aggregates` category.
 
 #. Click :guilabel:`Create Host Aggregate`.
 
@@ -57,7 +57,7 @@ To manage host aggregates
 #. Choose the admin project from the drop-down list at the top of the
    page.
 
-#. On the :guilabel:`Admin` tab, open the :guilabel:`System Panel` and click
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab and click
    the :guilabel:`Host Aggregates` category.
 
    -  To edit host aggregates, select the host aggregate that you want

doc/user-guide-admin/source/dashboard_manage_images.rst

@@ -24,7 +24,7 @@ Guide <http://docs.openstack.org/image-guide/content/>`_.
 
    Choose the :guilabel:`admin` project from the drop-down list
    at the top of the page.
-#. On the :guilabel:`Admin` tab, open the :guilabel:`System Panel`
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab
    and click the :guilabel:`Images` category. The images that you
    can administer for cloud users appear on this page.
 #. Click :guilabel:`Create Image`.
@@ -76,7 +76,7 @@ Update images
 
    Choose the :guilabel:`admin` project from the drop-down list
    at the top of the page.
-#. On the :guilabel:`Admin` tab, open the :guilabel:`System Panel`
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab
    and click the :guilabel:`Images` category.
 #. Select the images that you want to edit. Click :guilabel:`Edit`.
 #. In the :guilabel:`Update Image` window, you can change the image name.
@@ -93,7 +93,7 @@ Delete images
 
    Choose the :guilabel:`admin` project from the drop-down list
    at the top of the page.
-#. On the :guilabel:`Admin tab`, open the :guilabel:`System Panel`
+#. On the :guilabel:`Admin tab`, open the :guilabel:`System` tab
    and click the :guilabel:`Images` category.
 #. Select the images that you want to delete.
 #. Click :guilabel:`Delete Images`.

doc/user-guide-admin/source/dashboard_manage_instances.rst

@@ -16,7 +16,8 @@ Create instance snapshots
 #. Log in to the dashboard and choose the admin project from the
    drop-down list at the top of the page.
 
-#. On the :guilabel:`Admin` tab, click the :guilabel:`Instances` category.
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab
+   and click the :guilabel:`Instances` category.
 
 #. Select an instance to create a snapshot from it. From the
    :guilabel:`Actions` drop-down list, select :guilabel:`Create Snapshot`.
@@ -36,7 +37,8 @@ Control the state of an instance
 #. Log in to the dashboard and choose the admin project from the
    drop-down list at the top of the page.
 
-#. On the :guilabel:`Admin` tab, click the :guilabel:`Instances` category.
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab
+   and click the :guilabel:`Instances` category.
 
 #. Select the instance for which you want to change the state.
 

doc/user-guide-admin/source/dashboard_manage_volumes.rst

@@ -21,7 +21,7 @@ Create a volume type
 #. Log in to the dashboard and choose the :guilabel:`admin`
    project from the drop-down list at the top of the page.
 
-#. On the :guilabel:`Admin` tab, open the :guilabel:`System Panel`
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab
    and click the :guilabel:`Volumes` category.
 
 #. Click :guilabel:`Create Volume Type` button. In the
@@ -121,7 +121,7 @@ When you delete a volume type, volumes of that type are not deleted.
 #. Log in to the dashboard and choose the :guilabel:`admin` project from
    the drop-down list at the top of the page.
 
-#. On the :guilabel:`Admin` tab, open the :guilabel:`System Panel`
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab
    and click the :guilabel:`Volumes` category.
 
 #. Select the volume type or types that you want to delete.
@@ -142,7 +142,7 @@ destroyed.
 #. Log in to the dashboard and choose the :guilabel:`admin` project
    from the drop-down list at the top of the page.
 
-#. On the :guilabel:`Admin` tab, open the :guilabel:`System Panel`
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab
    and click the :guilabel:`Volumes` category.
 
 #. Select the volume or volumes that you want to delete.

doc/user-guide-admin/source/dashboard_set_quotas.rst

@@ -78,8 +78,8 @@ View default project quotas
 
 #. Log in to the OpenStack dashboard.
 
-#. On the :guilabel:`Admin` tab, click the
-   :guilabel:`Defaults` category.
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab
+   and click the :guilabel:`Defaults` category.
 
 #. The default quota values are displayed.
 
@@ -94,8 +94,8 @@ Update project quotas
 
 #. Log in to the OpenStack dashboard.
 
-#. On the :guilabel:`Admin` tab, click the
-   :guilabel:`Defaults` category.
+#. On the :guilabel:`Admin` tab, open the :guilabel:`System` tab
+   and click the :guilabel:`Defaults` category.
 
 #. Click the :guilabel:`Update Defaults` button.