WEBUI: cosmetic changes

-changed icon for adapters
-scheduled icon changed:
https://www.iconfinder.com/icons/8810/calendar_date_time_icon#size=16
-time schedule icon changed:
https://www.iconfinder.com/icons/9211/calendar_diary_today_icon#size=16
-add icon for Reset All in EPG page

src/webui/static/app/dvr.js

@@ -465,7 +465,7 @@ tvheadend.timerec_editor = function(panel, index) {
         url: 'api/dvr/timerec',
         titleS: 'Time Schedule',
         titleP: 'Time Schedules',
-        iconCls: 'clock',
+        iconCls: 'time_schedules',
         tabIndex: index,
         columns: {
             enabled:      { width: 50 },

src/webui/static/app/epg.js

@@ -745,7 +745,8 @@ tvheadend.epg = function() {
         epgFilterDuration, '-',
         {
             text: 'Reset All',
-            tooltip: 'Reset all filters to no filters',
+            iconCls: 'resetIcon',
+            tooltip: 'Reset all filters (show all)',
             handler: epgQueryClear
         },
         '->',

src/webui/static/app/ext.css

@@ -73,6 +73,10 @@
     border-right: 1px solid #d0d0d0;
 }
 
+.x-tree-node-leaf .x-tree-node-icon {
+    background-image:url(../icons/tv_cards.gif);
+}
+
 .ux-mselect {
     overflow: auto;
     background: white;
@@ -263,7 +267,7 @@
 }
 
 .clock {
-    background-image: url(../icons/schedule.png) !important;
+    background-image: url(../icons/clock.png) !important;
 }
 
 .exclamation {
@@ -291,7 +295,7 @@
 }
 
 .scheduled {
-    background-image: url(../icons/clock.png) !important;
+    background-image: url(../icons/scheduled.png) !important;
 }
 
 .recordingError {