Remove unneeded Section API (sections are to be nested in Reports)
Nest Sections in Reports
Fat reports working with new db structure
Merge branch 'report-visualisation-edit-view' of github.com:unepwcmc/NRT into report-visualisation-edit-view

* 'report-visualisation-edit-view' of github.com:unepwcmc/NRT:
  Update tests which refer to section.report_id (which is now nested)
  Section save defers to report.save
  Setup report model saving to support new mongo schema
  Don't include visualisation attribute in section JSON
  Narrative model should post only section._id in its JSON