Install openwsman_client.conf
Only allow ampersand (&) to separate query parameters

This removes comma (,) as a possible separator character for query
parameters.
Comma is used for WBEM ObjectPathes like in
localhost:5989/root/cimv2:Linux_Processor.SystemCreationClassName="Linux_ComputerSystem",CreationClassName="Linux_Processor",DeviceID="1"
But WS-Management uses http-based resource URIs as in
http://schemas.microsoft.com/wbem/wsman/1/wmi/root/cimv2/Win32_DiskPartition?DeviceID=Disk\#0\,\ Partition\ #0&SystemName=WINRM20
Disallow comma character as query separator, fixes issue #38
v2.4.11