Fixes viewlogs not keeping url state

gui/slick/views/viewlogs.mako

@@ -19,6 +19,7 @@ function(){
         $('#logSearch').prop('disabled', true);
         url = '${sbRoot}/errorlogs/viewlog/?minLevel='+$('select[name=minLevel]').val()+'&logFilter='+$('select[name=logFilter]').val()+'&logSearch='+$('#logSearch').val()
         $.get(url, function(data){
+            history.pushState('data', '', url);
             $('pre').html($(data).find('pre').html());
             $('#minLevel').removeProp('disabled');
             $('#logFilter').removeProp('disabled');
@@ -40,14 +41,20 @@ function(){
         document.body.style.cursor='default';
     });
 
-    $('#logSearch').keyup(function() {
+    $('#logSearch').on('keyup', function() {
         if ( $('#logSearch').val().length == 0 ) {
-            $('#logFilter option[value=\\<NONE\\>]').prop('selected', true);
+            $('#logFilter option[value=<NONE>]').prop('selected', true);
             $('#minLevel option[value=20]').prop('selected', true);
             $('#minLevel').prop('disabled', false);
             $('#logFilter').prop('disabled', false);
             url = '${sbRoot}/errorlogs/viewlog/?minLevel='+$('select[name=minLevel]').val()+'&logFilter='+$('select[name=logFilter]').val()+'&logSearch='+$('#logSearch').val()
-            window.location.href = url
+            $.get(url, function(data){
+                history.pushState('data', '', url);
+                $('pre').html($(data).find('pre').html());
+                $('#minLevel').removeProp('disabled');
+                $('#logFilter').removeProp('disabled');
+                $('#logSearch').removeProp('disabled');
+            });
         } else {
             $('#minLevel').prop('disabled', true);
             $('#logFilter').prop('disabled', true);