Improve undefined region show message.

Fixes #1913
Add layout-view.jsdoc
Add render:collection docs

fixes #1912
add controller.jsdoc file
Add additional jsdoc files
Update layout-view.jsdoc - referencing #1892
adding item-view.jsdoc... again
Merge pull request #1929 from bendman/minor

adding item-view.jsdoc... again
Merge pull request #1915 from marionettejs/sjs/region-undefined-bug

Improve undefined region show message.
Add auto addRegions behavior to regionMananger

fixes #1902