Add state reporting to the metadata agent

Need to add state reporting in order metadata agent
to appear in Neutron's agent list output

Closes-Bug: #1250369
Change-Id: I3a001e065004685d9702e817336e5d4923597791
Imported Translations from Transifex

Change-Id: Icea5a49b16be31eeef34078ef216a4818c253819
Merge "Add state reporting to the metadata agent"
Merge "Imported Translations from Transifex"