Add support for configuring mod_auth_kerb.

Two new configuration variables are recognized:

 * CONF_BROKER_KRB_SERVICE_NAME for the KrbServiceName
 * CONF_BROKER_KRB_AUTH_REALMS for the KrbAuthRealms

If both are specified, mod_auth_kerb package gets installed
and enabled and AuthType Kerberos is configured with these
values, instead of the default AuthType Basic.
Merge pull request #28 from adelton/mod_auth_kerb

Add support for configuring mod_auth_kerb.
Bug 969528: Using pam_cgroup for runuser, runuser-l, system-auth-ac and sshd.
<install scripts> Bug 970805 - Update install scripts to set ServerName

Updates the broker and node shipped config files to set ServerName to
the hostname instead of localhost.

Certificates were being generated with -extensions v3_req which cause
the self-signed certificates to be invalid (more so than normal
self-signed certificates) since they are not authorized for signing
certificates.
Remove oo-diagnostics since it has been merged into origin-server
Merge pull request #29 from detiber/bz970805

Bug 970805 - Update install scripts to set ServerName for httpd
oo-stats removed; o-o-broker-util has it in OSE 1.2
<install> RHN and RHSM changes for 1.2 channels
<install> Bug 976874 - Remove abrt-addon-python if necessary

https://bugzilla.redhat.com/show_bug.cgi?id=976874

abrt-addon-python does not play nicely with the python cartridge, remove
abrt-addon-python only if the following conditions are met:
1) RHEL 6.4 (RHEL 6.5 will contain an update to abrt-addon-python)
2) abrt-addon-python installed
3) python v2 cart installed
Merge pull request #30 from detiber/killabrt

<install> Bug 976874 - Remove abrt-addon-python if necessary
<install> RHN channels updated to ose-1.2
<Install script> - Fix RHN priority/exclude settings

yum-config-manager does not work properly on RHN channels, instead you
need to update /etc/yum/pluginconf.d/rhnplugin.conf for RHN channels
Merge pull request #31 from detiber/fixrhnconfig

<Install script> - Fix RHN priority/exclude settings
Merge remote branch 'origin/enterprise-1.2' into load-balancer
Automatic commit of package [rubygem-openshift-origin-load-balancer-common] release [0.3-1].
Automatic commit of package [rubygem-openshift-origin-load-balancer-daemon] release [0.1-1].
Automatic commit of package [openshift-origin-load-balancer-util] release [0.1-1].
Load F5/LBaaS backends conditionally

Read the configuration before loading the model and controller, and only
load the configured model and controller in the daemon and
oo-admin-load-balancer utility.