Add Reboot BMC page

Created a ControlStore with the intention to consolidate actions
across multiple subnav pages under the 'Control' tab, instead of
creating a dedicated RebootBmc store with one action.

- Update PageSection component to make sectionTitle prop optional
- Changed PageTitle computed property to data since the value
  doesn't change during the component lifecycle
- Change PageSection <section> element to <div> to avoid
  accessibility issues

Signed-off-by: Yoshie Muranaka <yoshiemuranaka@gmail.com>
Change-Id: I2877e2a7b9bfee245c48d52c70859978b74be7f3
diff --git a/src/components/Global/PageTitle.vue b/src/components/Global/PageTitle.vue
index 59bb6a1..17c0884 100644
--- a/src/components/Global/PageTitle.vue
+++ b/src/components/Global/PageTitle.vue
@@ -14,10 +14,10 @@
       default: ''
     }
   },
-  computed: {
-    title() {
-      return this.$t(this.$route.meta.title);
-    }
+  data() {
+    return {
+      title: this.$t(this.$route.meta.title)
+    };
   }
 };
 </script>