Get auth key for header on kerberos logins.
Working kerberos method. Only doing auth at this point.
Check to see if krb5-workstation is installed.
Merge pull request #22 from zenoss/feature/kerberos

Feature/kerberos
Fix flake8 complaints.
Stop encoding and stripping enumerated XML.

I have a feeling this will result in unicode errors popping up
elsewhere, but stripping this data is resulting in inconsistent query
results.
Updated references to ZENHOME for systems that have no Zenoss installed.
Handle wrong WinRM port or version.

Fixes ZEN-8897.
Merge pull request #24 from zenoss/feature/ZEN-8897

Please review branch feature/ZEN-8897
Updated location of krb5 file. Updated to send KRB5_CONFIG env to kinit.
Handling of missing dcip or realm information.
Handling of domain file updates.
Log information when KRB IP is not set.
Merge pull request #23 from zenoss/feature/setenv

Conflicts:
	txwinrm/util.py
Use "winrm" logger instead of "zen.winrm".
Need to use environment variable for KRB Config file.
Merge pull request #25 from zenoss/feature/https-kerb

Need to use environment variable for KRB Config file.
Fix usage of KRB5_CONFIG environment.
Merge branch 'release/0.9.7-72'