After node power off/on it's name presented by lowercase letters

[Anastasia Palkina]

"build_id": "2014-03-05_07-31-01",
"mirantis": "yes",
"build_number": "235",
"nailgun_sha": "f58aad317829112913f364347b14f1f0518ad371",
"ostf_sha": "dc54d99ddff2f497b131ad1a42362515f2a61afa",
"fuelmain_sha": "16637e2ea0ae6fe9a773aceb9d76c6e3a75f6c3b",
"astute_sha": "f15f5615249c59c826ea05d26707f062c88db32a",
"release": "4.1",
"fuellib_sha": "73313007c0914e602246ea41fa5e8ca2dfead9f8"

1. Create new environment (CentOS, simple mode)
2. Add controller and compute nodes
3. Power off compute node
4. Waiting until node will have status 'offline'
5. Delete this node from cluster
6. Power on this node
7. Create any cluster (CentOS, simple mode)
8. Click button "Add nodes"
9. Node name presented by lowercase letters (on screen it's node c0:cc)

[Evgeniy L (rustyrobot)]

Need to change behavior of name assignment here

https://github.com/stackforge/fuel-web/blob/stable/4.1/nailgun/nailgun/api/handlers/node.py#L228-L229

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/81324
Committed: https://git.openstack.org/cgit/stackforge/fuel-web/commit/?id=8496ca0bb561e17088fe63269408ac95eab8c3c2
Submitter: Jenkins
Branch: master

commit 8496ca0bb561e17088fe63269408ac95eab8c3c2
Author: Artem Roma <email address hidden>
Date: Tue Mar 18 19:56:51 2014 +0200

    Unify default name construction for node

    Letters conversion to lowercase in "mac part" of default name for node
    added.

    Change-Id: Iaa6dbbb879d7e1c5a07aafe04022d0362b4eb353
    Closes-Bug: #1289328

[Anastasia Palkina (apalkina)]

Verified on ISO #40
"build_id": "2014-03-25_01-01-50",
"mirantis": "yes",
"build_number": "40",
"nailgun_sha": "3044c2054904525601c921387322a2978e821677",
"ostf_sha": "013c13ab033a6829ca4eeaa2476c30837e814902",
"fuelmain_sha": "f7ee8bcaa3d993395669f2bcae893176ff2b3bbe",
"astute_sha": "d7c6c4d00ffd6e2fa74da442f573e6f39049961e",
"release": "5.0",
"fuellib_sha": "3445ab7550486074ec8e47fdaed869c697991364"