[docs] Docs misguide in master node PXE address setting

[Miroslav Anashkin]

http://docs.mirantis.com/fuel/fuel-5.0/user-guide.html#changing-pxe-network-parameters-during-installation

Currenly master node PXE settings customization section in our docs by the link above is valid for 4.1, but absolutely incompatible with 5.0.
Several customers get misguided by the incorrectly described Fuelmenu and got non-working Fuel environment.
Fuelmenu screenshots are also outdated.

[Miroslav Anashkin (manashkin)]

Master node PXE IP address must be set via kernel options in master node boot menu.

Network Settings tab in Fuelmenu configures docker0 internal network bridge only and has no relation to the network settings in 4.1!

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/98893

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/98893
Committed: https://git.openstack.org/cgit/stackforge/fuel-docs/commit/?id=e64d0bcbd591982dd130075a087e785dca28d625
Submitter: Jenkins
Branch: master

commit e64d0bcbd591982dd130075a087e785dca28d625
Author: Miroslav Anashkin <email address hidden>
Date: Tue Jun 10 00:53:20 2014 +0400

    Added Fuel Setup guide

    Added fuel Setup guide and images.
    Increased image resolution and added more images.
    Added options explanation for each section.
    Corrected spelling errors in accordance with comments.

    Change-Id: Id0a1f30860c501e1b40c93931ba0afb605e4548a
    Closes-Bug: #1326125

[Miroslav Anashkin (manashkin)]

Should not we change milestone back to 5.0.1?
Docs passed review, finally...

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/5.0
Review: https://review.openstack.org/101291

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/101291
Committed: https://git.openstack.org/cgit/stackforge/fuel-docs/commit/?id=1c46dc9c8234add8e64b2aa019d25ef281cfafc6
Submitter: Jenkins
Branch: stable/5.0

commit 1c46dc9c8234add8e64b2aa019d25ef281cfafc6
Author: Miroslav Anashkin <email address hidden>
Date: Tue Jun 10 00:53:20 2014 +0400

    Added Fuel Setup guide

    Added fuel Setup guide and images.
    Increased image resolution and added more images.
    Added options explanation for each section.
    Corrected spelling errors in accordance with comments.

    Change-Id: Id0a1f30860c501e1b40c93931ba0afb605e4548a
    Closes-Bug: #1326125
    (cherry picked from commit e64d0bcbd591982dd130075a087e785dca28d625)

[Miroslav Anashkin (manashkin)]

Updated docs are publicly accessible at
http://docs.mirantis.com/openstack/fuel/fuel-5.0/user-guide.html#changing-pxe-network-parameters-during-installation