bin/cobbler reference to BootAPI changed to CobblerAPI.

Now cobblerd does start again, this fixes #1220.
Merge pull request #1221 from jmaas/master

bin/cobbler reference to BootAPI changed to CobblerAPI.
Module manage_in_tftpd.py now returns 'in_tftpd'  from what().

Besides this being a bit more consistent this also fixes some
warnings in 'cobbler check'.
Merge pull request #1225 from jmaas/master

Module manage_in_tftpd.py now returns 'in_tftpd'  from what().
Rename VALIDA_REPO_BREEDS to REPO_BREEDS.
Move virt types list into validate.py.
Remove Monit support from Cobbler core.

Managing services and their configuration should really be
done by a configuration management system (eg. Puppet).
Docs: document the Monit removal in the release-notes.
Merge pull request #1226 from jmaas/master

Remove monit support and minor repo_breeds refactoring
Move redhat-management (spacewalk/satelite) support from core to contrib.

These vendor specific bits don't any longer belong in the core of Cobbler.
Moving stuff like this in modules/contrib/packages improves maintainability
of Cobbler, also we don't want to be biased towards any Linux vendor.
Merge pull request #1227 from jmaas/master

Move redhat-mgt (spacewalk/satelite) support from core to contrib.
Update documentation to reflect the removal of redhat_management.
Merge pull request #1228 from jmaas/master

Update documentation to reflect the removal of redhat_management.
Minor release-notes updates.
Merge pull request #1229 from jmaas/master

Minor release-notes updates.
Minor release-notes updates.
Merge pull request #1230 from jmaas/master

Minor release-notes updates.
Fix typo in setup.py.
Merge pull request #1231 from jmaas/master

Fix typo in setup.py.
gpgcheck / enabled are not valid in kickstart, only in config.repo

Commit 6f2b3f5b93ec7681f730dc6b847f7bac6decc038 changed kickstart
generation to add all defined yum options for a repo to the
repo line in the kickstart file. However, only some options are
valid in the kickstart (and this no doubt changes with anaconda version).
In particular, gpgcheck is allowed in the yum configuration file, but
not on a kickstart repo line.

Allow gpgcheck to be overridden from the cobbler default,
forcing gpg signature verfication in accordance with STIG requirements,
without including gpgcheck in the kickstart.

Also, never include "enabled" on the repo line.

Signed-off-by: Mark Levedahl <mlevedahl@gmail.com>