Refactoring subcontrollers and features on the admin panel
Dashboard subcontrollers
Some code from dev
Merge branch 'master' into refactor
Some strings ID from @Dropmeaword... I go with merge
Some string ID switching from @Dropmeaword

NOTE
I'll not switch yet any Text::get , only generic text
because those are currently tracked on the DB and some depend on implementation
In future will move generic text from DB to .po
Aditional emails in configuration
Dispatcher: lang namespace, maintenance verification
Subcontrollers for admin panel
Lang namespace
Features and code arrangement on controllers
Features and code update on models
Improvements and compatibility on core classes
Improvements, compatibility and internationalization on libraries
Lang namespace
Now will test all keep working
Cleaning code
Libreria de paginación: recreación de índice para arrays asociativos
new config to keep local settings
templates with group