From: ShaoHe Feng <shaohef@linux.vnet.ibm.com>

V2 -> V3:
move the virDomain.metadata and virDomain.setMetadata to model/utils.py 
add testcase

V1 -> V2:
libvirt also support virDomain.metadata and virDomain.setMetadata two api.
use virDomain.metadata to get the user and group.
use virDomain.setMetadata to set the user and group. 

ShaoHe Feng (3):
  Add two function to set and get domain xml metadata
  bug fix: get user and group when vm is living.
  update test case to set/get user and group when VM is running

 src/kimchi/i18n.py        |  1 +
 src/kimchi/model/utils.py | 41 ++++++++++++++++++++++++++++++
 src/kimchi/model/vms.py   | 65 +++++++++++++++++++++++------------------------
 tests/test_model.py       | 13 ++++++++++
 4 files changed, 87 insertions(+), 33 deletions(-)