Added refresh button for UI

Web UI is caching records. Currently only possible ways how to display updated record which was changed elsewhere - ie. in CLI are:
 * refresh page in browser (takes really long on slow vpns)
 * search facet: change filter, find, change filter back, find
 * entity details: go to search, select other entry, go back to search, select original entry
 * association facet: same as entity details

These are unconvenient methods.

This patch adds Refresh button to search, details and association facet. This button executes facets refresh method.

https://fedorahosted.org/freeipa/ticket/2051

install/ui/search.js

@@ -47,15 +47,15 @@ IPA.search_facet = function(spec) {
 
         that.facet_create_header(container);
 
-        var span = $('<div/>', {
+        var div = $('<div/>', {
             'class': 'right-aligned-facet-controls'
         }).appendTo(that.controls);
 
-        span.append(IPA.create_network_spinner());
+        div.append(IPA.create_network_spinner());
 
         var filter_container = $('<div/>', {
             'class': 'search-filter'
-        }).appendTo(span);
+        }).appendTo(div);
 
         that.filter = $('<input/>', {
             type: 'text',
@@ -78,6 +78,17 @@ IPA.search_facet = function(spec) {
             }
         }).appendTo(filter_container);
 
+        that.refresh_button = IPA.action_button({
+            name: 'refresh',
+            href: 'refresh',
+            label: IPA.messages.buttons.refresh,
+            icon: 'reset-icon',
+            click: function() {
+                that.refresh();
+                return false;
+            }
+        }).appendTo(that.controls);
+
         that.remove_button = IPA.action_button({
             name: 'remove',
             label: IPA.messages.buttons.remove,