[SSSD] [Patch] Improvements for the Kerberos locator plugin

[Sumit Bose]

Hi,

the following two patches are related to the Kerberos locator plugin.

The first patch removes the name resolution from the locator plugin and
let it use the IP address found by the resolver code. This way we can be
sure to always talk to the same server until the resolver chooses a new
server.

The second patch tries to make debugging of the locator plugin easier by
activating it automatically if the debug level of the Kerberos provider
is 5 or higher. Also the timestamp and debug-to-files flags are
respected.

bye,
Sumit