Updated ChangeLog for ApiManagement Cmdlets update.

Author: solankisamir

src/ResourceManager/ApiManagement/ChangeLog.md

@@ -18,6 +18,15 @@
         - Additional information about change #1
 -->
 ## Current Release
+* Added new cmdlets to manage external Identity Provider Configurations
+	- New-AzureRmApiManagementIdentityProvider
+	- Set-AzureRmApiManagementIdentityProvider
+	- Get-AzureRmApiManagementIdentityProvider
+	- Remove-AzureRmApiManagementIdentityProvider
+
+* Updated the client to use .net client 3.2.0 AzureRm.ApiManagement which has RBAC support
+* Updated cmdlet Import-AzureRmApiManagementApi to allow importing an Wsdl type API as either Soap Pass Through (ApiType = Http) or Soap To Rest (ApiType = Soap). Default is Soap Pass Through.
+* Fixed Issue https://github.com/Azure/azure-powershell/issues/3217
 
 ## Version 3.1.0
 * Fixed cmdlet Import-AzureRmApiManagementApi when importing Api by SpecificationByUrl parameter