Complete rewrite.
Added PHPUnit tests;
Exceptions have codes, and in constants too;
Styles now properly refers to ReflectionClass;
Styles::ALL is now eliminated from results of matching constants;
Color::getBackground() is fixed;
Color::getStyles() works properly with a single style.
Added a PHAR stub that when executed alone from the command line checks if colors are working at all;
Adjusted packagexmlsetup.php to add a replace task for the source folder in bootstrap.php and phpunit.xml.