validator.py is a tool to validate kerb configuration files.

validator.py is a tool to validate kerb configuration files.
First, the configuration file is parsed (confparser.py) and validated against formating errors (such as mismatching brackets)
Then the list of the allowed configuration attributes is compiled from k5-int.h and rules.yml
Finally, the kerb configuration file is validated against the list of the allowed strings.
If the error, or something that validator does not understand, is found the warning is issued in the tree-like form indicating the layer where the problem has occurred.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@23732 dc483132-0cff-0310-8789-dd5450dbe970