Switched master branch to be the next future branch for 2.0
Use strict comparison to compare two class names
fixes #42: Enum::is() not working on inherited enumerations
fixes #43: throw an LogicException on un/-serialize an enumeration instance
Merge branch 'hotfix/42' of https://github.com/marc-mabe/php-enum into 1.x
Merge branch 'hotfix/43' of https://github.com/marc-mabe/php-enum into 1.x