V1.1 Homedoc

Updated the homedoc to match the spec listed on
https://wiki.openstack.org/wiki/Marconi/specs/api/v1.1
Implements: blueprint api-v1.1-homedoc-changes
Change-Id: I7fa33413d38095b04b0e1e513974cb3887420802
Merge "V1.1 Homedoc"