Adds section to Object Storage about CLIs and utils

- swift, swift-init, swift-recon, swift-ring-builder

Change-Id: I7838d379fb77adf2f17acd5d920cb33dde6450a6
Partial-bug: 1238668

doc/common/section_storage-concepts.xml

@@ -84,4 +84,32 @@
       </listitem>
     </itemizedlist>
  </para>
+  <variablelist>
+    <title>Command-line clients and other interfaces</title>
+    <varlistentry>
+      <term>swift client</term>
+      <listitem>
+        <para>Enables users to submit commands to the REST API through
+          a command-line client authorized as either a admin user,
+          reseller user, or swift user.</para>
+      </listitem>
+    </varlistentry>
+    <varlistentry>
+      <term>swift-init</term>
+      <listitem><para>Script that initializes the building of the ring
+      file, takes daemon names as parameter and offers commands.
+      Documented in
+        <link xlink:href="http://docs.openstack.org/developer/swift/admin_guide.html#managing-services">http://docs.openstack.org/developer/swift/admin_guide.html#managing-services</link>.</para></listitem>
+    </varlistentry>
+    <varlistentry>
+      <term>swift-recon</term>
+      <listitem><para></para></listitem>
+    </varlistentry>
+    <varlistentry>
+      <term>swift-ring-builder</term>
+      <listitem><para>Storage ring build and rebalance utility.
+        Documented in <link
+          xlink:href="http://docs.openstack.org/developer/swift/admin_guide.html#managing-the-rings">http://docs.openstack.org/developer/swift/admin_guide.html#managing-the-rings</link>.</para></listitem>
+    </varlistentry>
+  </variablelist>
 </section>