Fix Bug 2296: Newly Created Ns should come first in NG-UI

	- Sorted the list using created Date in descending order
        - Incorrect Information in "Expires in " section of Admin user :
	  Changed it to N/A
	- VIM Resource Overview: RAM Value should be rounded off :
	  Rounded off the value to 2 decimal points
	- Fixed the key issue in topology

Change-Id: I634aee0b4e4540386c5108232746f56959bcc838
Signed-off-by: SANDHYA.JS <sandhya.j@tataelxsi.co.in>
diff --git a/src/app/instances/pdu-instances/PDUInstancesComponent.ts b/src/app/instances/pdu-instances/PDUInstancesComponent.ts
index 5c25279..6a2ca34 100644
--- a/src/app/instances/pdu-instances/PDUInstancesComponent.ts
+++ b/src/app/instances/pdu-instances/PDUInstancesComponent.ts
@@ -124,10 +124,13 @@
     public generateTableColumn(): void {
         this.columnList = {
             identifier: { title: this.translateService.instant('IDENTIFIER'), width: '25%' },
-            name: { title: this.translateService.instant('NAME'), width: '20%', sortDirection: 'asc' },
+            name: { title: this.translateService.instant('NAME'), width: '20%' },
             type: { title: this.translateService.instant('TYPE'), width: '15%' },
             usageState: { title: this.translateService.instant('USAGESTATE'), width: '15%' },
-            CreatedAt: { title: this.translateService.instant('CREATEDAT'), width: '15%' },
+            CreatedAt: {
+                title: this.translateService.instant('CREATEDAT'), width: '15%', sortDirection: 'desc',
+                compareFunction: this.sharedService.compareFunction
+            },
             Actions: {
                 name: 'Action', width: '10%', filter: false, sort: false, type: 'custom',
                 title: this.translateService.instant('ACTIONS'),