Merge pull request #3 from dayax/v1.0.0

update readme
configure composer for core package. Add autoload to ExceptionCode.php file
[core] fix composer configuration, for autoload ExceptionCode class
[core] fix composer configuration, for autoload ExceptionCode class
[core] fix ExceptionCode assertion message
Merge pull request #6 from tonimunthi/master

fix composer configuration to patch PHPUnit ExceptionCode class