Altered client folder rename procedure to create a random folder name so that it wouldn't fail

# Check to see if the client was installed
if ( Test-Path $sageClientProgramData )
{
# Rename that folder to _old
# The first time the client logs it will be rebuilt

$newFolderName = ApplyRandomSuffixToString $sageClientProgramData
Rename-Item $sageClientProgramData $newFolderName

}