New UI changes(tags, categories, authorisations, module index…)

To run:
  - ruby lib/remove_old_tags.rb DB_NAME
  - rake new_ui:migrate_tags
  - rake new_ui:migrate_categories['APP_KEY,''MODEL_NAME'] (check new_ui.rake for more details)

app/assets/javascripts/lib/module-nav-scroll.js

@@ -0,0 +1,60 @@
+// Search Clear
+!function ($) {
+    $.fn.searchClear = function (param){
+        _defaultSettings = {
+            inputName: ':input',
+            inputIcon: 'inputIcon',
+            clearBtnIcon: 'clearBtnIcon',
+        };
+        _set = $.extend(_defaultSettings, param);
+        $this = this;
+        $input = this.find(_set.inputName);
+        $tmp = '<i class="'+_set.inputIcon+'"></i><i class="'+_set.clearBtnIcon+' search-clear"></i>';
+        $input.wrap('<div class="sc-field" />');
+        $this.find('.sc-field').prepend($tmp);
+        $searchClear = $this.find(".search-clear");
+        function run(e) {
+            $searchClear.hide();
+            if($input.val().length > 0) {
+                $searchClear.show();
+            }else {
+                $searchClear.hide();
+            }
+            $input.on("blur keyup", function(){
+                if($(this).val().length > 0) {
+                    $searchClear.show();
+                }else {
+                    $searchClear.hide();
+                }
+            });
+            $searchClear.on({
+                click: function(){
+                    $(this).hide();
+                    $input.val("")
+                },
+            });
+        }
+        
+        // Checking IE10
+        // if Windows 8 and IE is ture. remove search clear buttom and fix text input padding-right
+        if(/Windows NT 6.2/g.test(navigator.userAgent)){
+            if(/MSIE/g.test(navigator.userAgent)){
+                $searchClear.remove();
+                $input.css({
+                    'padding-right': '5px',
+                });
+            }else{run()}
+        }else{run()}
+    }
+}(window.jQuery);
+
+
+
+var $moduleWidth = 0,
+    $moduleNav = $('.module-nav');
+    
+var navMenu = new iScroll(document.getElementsByClassName('nav-scroll')[0], {
+        snap: true,
+        momentum: false,
+        hScrollbar: false,
+    });