Prepared everything for services

New:
    Service class
    Service class unit test

Changed:
    Some comment updates

Fixed:
    A bug when using GET parameters
Added phpunit configuration file
Started implementing a new config class

New:
    Config class
    Config class unit test

Changed:
    Included composer autoload.php in phpunit.xml.dist
Implemented services and config class

New:
    ServiceSetup method in application class

Changed:
    Config converted to yaml
    Removed all config constants
Code cleanup after implementing services and config class

Changed:
    Updated sample controller, models and templates
    Small changes to config.yml
Updated PHPDoc comments

Changed:
    PHPDoc comments

Fixed:
    Bug in config class
Included new changes into README

Changed:
    Added "Services" to README
    Updated file names in README
Merge branch 'master' of github.com:Mawalu/php-boilerplate

Conflicts:
	README.md