add "created" response method
blueprint create returns 201 status code. fixes #2299
Merge pull request #2442 from hmil/fix-blueprint-201-status

Fix blueprint 201 status
Update CHANGELOG.md with latest commits
Update warnings for layout since we support handlebars
Better warnings for layout configuration
Merge branch 'master' of https://github.com/balderdashy/sails into sails

* 'master' of https://github.com/balderdashy/sails:
  Better warnings for layout configuration
  Update warnings for layout since we support handlebars
  Update CHANGELOG.md with latest commits
  blueprint create returns 201 status code. fixes #2299
  add "created" response method