OS::Neutron::Subnet host_routes should allow updates.

This change allows updates of host_routes
in OS::Neutron::Subnet. Neutron supports updating subnet host_routes.

Change-Id: I8d13f16ad70c3c95fa00654a6b194579d6b947ed
Closes-Bug: #1400389
Handle 404 on Zaqar Queue delete

Change-Id: Iacff8adadc59693e9f8e4132f369bf08956affe3
Closes-Bug: 1404375
Correct group's updates from a failed state

This patch modifies autoscaling/instance group to
handle updates from a failed state.

Change-Id: I235b3e97276361022e708266bf06bca6556bcf76
Closes-Bug: #1383618
Add property 'router' to RouterInterface

This patch adds property 'router' with using resolve_router
method for resolving 'router_id'.

Change-Id: I3e2dea928eb00751153e6d3fdafa084186a4a8dc
Add property 'router' to Neutron::VPNService

This patch adds property router with using resolve_router
method which allows to resolve 'router_id' for VPNService
resource.

Change-Id: I2ca803dc372078bee6a05bcb5d8a174d185cf4b7
Merge "Handle 404 on Zaqar Queue delete"
Merge "Correct group's updates from a failed state"
Merge "Add property 'router' to RouterInterface"
Merge "Add property 'router' to Neutron::VPNService"
Merge "OS::Neutron::Subnet host_routes should allow updates."