Version 2.3.1
  - exit with non-zero code if connection fails
  - man pages (Kent Baxley)
  - read credentials from environment
    wsman: WSMAN_USER, WSMAN_PASS, WSMAN_EVENT_USER, WSMAN_EVENT_PASS
    wseventmgr: WSEVENTMGR_USER, WSEVENTMGR_PASS, WSEVENTMGR_EVENT_USER, WSEVENTMGR_EVENT_PASS
  - add --non-interactive cli parameter to prevent asking for credentials

Version 2.3.0
  - don't crash on filter parse error (Zoltan Micskei)
  - remove -Q (don't send request) option
  - complain about bad filter expression
  - fix autotools build for MacOS (Dan Villiom Podlaski Christiansen)

Version 2.2.7.1
  - adapt to reduced libu exposure in openwsman

Version 2.2.7
  - fix the default port setting to match wsmc_create() call. Use
    https (port 5986) when cainfo is set.
  - in debug mode, dump the complete response XML if it can't
    be parsed (Chris Poblete)

Version 2.2.6
  - fix segfault in output_file handling (Chris Poblete)

Version 2.2.5
  - fix integral parameters on big endian architectures (Kamil Dudka)

Version 2.2.4
  - Enhance enumerate with association filter to have the ability to
    specify the optional elements namely: AssociationClassName, Role,
    ResultClassName, ResultRole and IncludeResultProperty.
    (IncludeResultProperty is a list, specify it as a comma separated list
    in the “U” option.)
    (Chris Poblete)
  Bugfixes
  - fix default ports (5985/5986)
  - fix --sslkey handling
  - add warning if ssl used without --cacert

Version 2.2.3
  Bugfix release, synchronize version with openwsman
  - fix double free error on enumeration (Chris Poblete)
  - add '--version' to print version and build timestamp