- Added a new query param 'layers=x' to /tasks/{task_id}
where x is a number.
This param allows the API to drill down to all the subtasks.
If x is -1 it will reeturn all subtasks, otherwise it will return
x layers of subtasks.
- Added a new query param 'subtaskerrors=true' to /tasks/{task_id}.
If true then any errors from subtasks will be included in the
subtask_errors element in the response.
- Added a POST to /nodes that requires node_filter and site_design
in the body. Then uses those parameters to return a list of nodes.
Change-Id: I9b4c06dd1c9de2b0500092aa4b4bfacac08eac54
b138b3c179