Added compare function 'is'
Composer: extra.branch-alias.dev-master=1.2-dev
Update composer.json
Travis: no longer allow HHVM to fail

and don't create code coverage with HHVM because of an issue with ocular.phar
defined minumum required hhvm version
reverted hhvm requiremend from composer

... as it excludes each other
Update README.md
Update README.md
fixed typo in readme
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/43' of https://github.com/marc-mabe/php-enum
updated my email and homepage
Merge branch 'master' of https://github.com/marc-mabe/php-enum into EnumSet_BitSet
optimized EnumSet