Added missing `config` path to getting-started/cakephp-folder-structure.rst
Removed Config path from "The Src Folder"

and used that description in the above path description
Merge pull request #1560 from elboletaire/add-config-path

3.0 - Add config path to folder structure@getting started
Update config var name for template paths.
Removed references to the removed ssn and not introduced personId method

Refs https://github.com/cakephp/cakephp/pull/4170#issuecomment-51203445
Merge pull request #1562 from ravage84/3.0-remove-ssn-and-personid

Removed references to the removed ssn and not introduced personId method