WEBUI: update icon schedule recording and tab Time Schedule

Source icon:

http://www.fancyicons.com/free-icon/103/pretty-office-2-icon-set/free-event-calendar-icon-png/

http://www.softicons.com/toolbar-icons/pretty-office-v-icons-by-custom-icon-design/schedule-icon

src/webui/static/app/ext.css

@@ -259,7 +259,7 @@
 }
 
 .clock {
-    background-image: url(../icons/clock.png) !important;
+    background-image: url(../icons/schedule.png) !important;
 }
 
 .exclamation {
@@ -466,6 +466,10 @@
     background-image: url(../icons/broadcast_details.png) !important;
 }
 
+.time_schedules{
+    background-image: url(../icons/time_schedules.png) !important;
+}
+
 .x-linked {
     display: inline-block;
     background-image: url(../icons/linked.gif) !important;