fix date/time representation in national locales

Added "localeDate" filter to present date and time in preferred format:
 - the date will be displayed as: 'Dec 3, 2018'
 - the time will be displayed in locale preferred format.
 - the timezone will be displayed as abbrev or GMT+/-offset.

At the 'Date and Time setting' the time zone name will displayed in long
format if it is possible.

All text parts of date/time representation will be in English.

Resolves: openbmc/phosphor-webui#42

Change-Id: I2fdbb47c62dfc5000039b0c00a20f64a9a389fc6
Signed-off-by: Alexander Filippov <a.filippov@yadro.com>
diff --git a/app/server-control/controllers/bmc-reboot-controller.html b/app/server-control/controllers/bmc-reboot-controller.html
index 8b987a3..dece701 100644
--- a/app/server-control/controllers/bmc-reboot-controller.html
+++ b/app/server-control/controllers/bmc-reboot-controller.html
@@ -6,7 +6,7 @@
     <div class="page-header">
       <p class="inline h4">Current BMC boot status</p>
       <div class="float-right bmc-reboot__status-log inline">BMC last reboot at
-        <span class="courier-bold">{{reboot_time | date:'medium'}}</span></div>
+        <span class="courier-bold">{{reboot_time | localeDate}}</span></div>
     </div>
   </div>
   <div class="row column">