Fixes in NodesController when params are not passed
Refactor NodesController#hit to use send
Merge pull request #857 from bkutil/node_controller_fixes

Fixes in NodesController when params are not passed
Merge pull request #858 from bkutil/use_send_in_nodes_controller_hit

Refactor NodesController#hit to use send
Do not consider cinder volumes as local disks

They belong to the VMs really, so don't add them to the fixed/unclaimed
disks list. Fixes bnc#826569
Merge pull request #854 from vuntz/cinder-removable

Do not consider cinder volumes as local disks