Add link to Cobbler web UI into documentation.

[Denis Klepikov]

http://docs.mirantis.com/openstack/fuel/fuel-6.0/operations.html#how-to-modify-kernel-parameters

Kernel parameters are options that are passed to the kernel when a Linux system is booted. Kernel parameters can be set in any of the following ways:

Use the Fuel Welcome screen to define kernel parameters that will be set for the Fuel Master node when it is installed.
+Add screen and link to docs - http://docs.mirantis.com/openstack/fuel/fuel-6.0/user-guide.html#install-fuel-master-node

Use the Cobbler web UI to change kernel parameters for all nodes using or for specific nodes. The nodes appear in Cobbler only after they are deployed; to change parameters before deployment, stop the deployment, change the parameters, then proceed.

+Add link to Cobbler web UI http://FUEL-MASTER-NODE-IP/cobbler_web with link to docs http://docs.mirantis.com/openstack/fuel/fuel-6.0/operations.html?highlight=cobbler_web#using-the-cobbler-web-ui-to-set-kernel-parameters (It is near it, but customer will have a direct link to it in description).

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/153209

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/153209
Committed: https://git.openstack.org/cgit/stackforge/fuel-docs/commit/?id=2c9a880537fe498742db0d5672e03bf6d9da71eb
Submitter: Jenkins
Branch: master

commit 2c9a880537fe498742db0d5672e03bf6d9da71eb
Author: Irina Povolotskaya <email address hidden>
Date: Thu Feb 5 15:34:50 2015 +0300

    Add a link to Cobbler web UI

    An extra link with placeholders should be added to
    the Ops Guide to prevent users from searching it
    in the text.

    Change-Id: I35c8bfb082e2f32446282e65108f8f3e009f869b
    Closes-Bug: 1418521

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/6.0
Review: https://review.openstack.org/154101

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/154101
Committed: https://git.openstack.org/cgit/stackforge/fuel-docs/commit/?id=ea097c98d442fcc34c3b7106c247cf315aca4841
Submitter: Jenkins
Branch: stable/6.0

commit ea097c98d442fcc34c3b7106c247cf315aca4841
Author: Irina Povolotskaya <email address hidden>
Date: Thu Feb 5 15:34:50 2015 +0300

    Add a link to Cobbler web UI

    An extra link with placeholders should be added to
    the Ops Guide to prevent users from searching it
    in the text.

    Change-Id: I35c8bfb082e2f32446282e65108f8f3e009f869b
    Closes-Bug: 1418521
    (cherry picked from commit 2c9a880537fe498742db0d5672e03bf6d9da71eb)