AzureAD module check

functions are forcibly asking for AzureAD... eventhough AzureADPreview installed.

line 811, request-AzureADModule
$azureADModule = Get-Module -Name AzureAD -ListAvailable

line 4293 function Request-ConnectAzureAD
$aadModule = Get-Module | Where-Object { $_.Name -like "AzureAD" }