Update base_controller_plugin.php

Improved readability
Merge pull request #1 from dlozupone/development

Implemented: global registering of javascript
Merge branch 'development' of https://github.com/dlozupone/wp-mvc-base
Merge branch 'master' of https://github.com/dlozupone/wp-mvc-base
Merge branch 'development' of https://github.com/dlozupone/wp-mvc-base into development
Merge branch 'refs/heads/development'
Merge pull request #3 from dlozupone/development

Minor refactor