packaging/ovirt-node: merge upstream and UI fixes.
1. merge upstream to cf277e10bb0191a392e27605659935db1ce32f15.
2. fix default iscsi iname substituion.
3. add two i18n strings for EayunOS.
4. remove the Plugins page.

Signed-off-by: Zhao Chao <zhaochao1984@gmail.com>