Code Climate rating calculation for `src/` (task #4302)
Code Climate rating calculation for `src/` (task #4302)

Code Climate ratings/grades provide a quick way to measure the
quality of code in file, folder, and overall repository.  Since
we have plenty of irrelevant, third-party, dummy test, and other
unpredictable files, it only makes sense to enable this for the
main `src/` folder.

Here's the link for more information:

  https://docs.codeclimate.com/v1.0/docs/ratings

QoboLtd/cakephp-messaging-center,QoboLtd/cakephp-utils,QoboLtd/cakephp-roles-capabilities,QoboLtd/cakephp-groups,QoboLtd/cakephp-menu,QoboLtd/cakephp-plugin-template,QoboLtd/cakephp-cms,QoboLtd/cakephp-calendar,QoboLtd/cakephp-groups,QoboLtd/cakephp-search,QoboLtd/cakephp-translations,QoboLtd/cakephp-search,QoboLtd/cakephp-menu,QoboLtd/cakephp-calendar,QoboLtd/cakephp-notes,QoboLtd/cakephp-csv-migrations,QoboLtd/cakephp-translations,QoboLtd/cakephp-cms,QoboLtd/cakephp-roles-capabilities,QoboLtd/cakephp-utils,QoboLtd/cakephp-calendar,QoboLtd/cakephp-cms,QoboLtd/cakephp-csv-migrations,QoboLtd/cakephp-utils