Get knife winrm command to return the exit code that is returned by the remote command if it is not expected.
Spec test to cover exact exit code response.
Tabs to spaces in test specs, other spec formatting
Update documentation for 0.8.0.rc.1
Additional whitespace cleanup
Merge pull request #102 from opscode/adamedx/propagate-exit-code

Propagate remote command exit code to knife winrm exit code