Updating changelog

Author: ms-alguerra

ChangeLog.txt

@@ -2,6 +2,19 @@
 * Azure Resource Manager cmdlets
     * Fixed formatting of output for Get-UsageAggregates
     * Fixed executing Get-UsageAggregates when first cmdlet being called.
+* Added TrafficManager cmdlets
+    * Enable-AzureTrafficManagerProfile
+    * Disable-AzureTrafficManagerProfile
+    * New-AzureTrafficManagerEndpoint
+    * Get-AzureTrafficManagerEndpoint
+    * Set-AzureTrafficManagerEndpoint
+    * Remove-AzureTrafficManagerEndpoint
+    * Enable-AzureTrafficManagerEndpoint
+    * Disable-AzureTrafficManagerEndpoint
+* Upgraded TrafficManager cmdlets
+    * Get-AzureTrafficManagerProfile
+        * Name is now optional (it will list all profiles in resource group)
+        * Resource group is now optional (it will list all profiles in subscription)
 
 2015.06.26 version 0.9.4
 * Azure Compute cmdlets