add arrow fn and fix ajax

Author: LISBON11

common.blocks/pager/pager.bemhtml.js

@@ -1,7 +1,7 @@
 block('pager')
 .elem('item')
-.match(function() { return this.ctx.url !== true; })
-.replace()(function() {
+.match(node => { return node.ctx.url !== true; })
+.replace()(node => {
     const type2caption = {
         first: '<<',
         prev: '<',
@@ -10,14 +10,14 @@ block('pager')
         last: '>>'
     };
 
-    const elemMods = this.elemMods;
+    const elemMods = node.elemMods;
     const type = elemMods.type;
 
     return {
         block: 'button',
         mods: { theme: 'islands', size: 'm', type: 'link', disabled: type === 'current' },
-        mix: { block: this.block, elem: this.elem, elemMods },
-        url: this.ctx.url,
-        text: type2caption[type] || this.ctx.number
+        mix: { block: node.block, elem: node.elem, elemMods },
+        url: node.ctx.url,
+        text: type2caption[type] || node.ctx.number
     };
 });

common.blocks/sidebar/__sorting/sidebar__sorting.js

@@ -25,7 +25,6 @@ modules.define(
             delete params.page;
 
             Location.change({ params: params });
-            window.location.reload();
         },
 
         _getParams: function(sort, direction) {