Merge pull request #11 from liuggio/master

added sanitizer
Merge pull request #12 from liuggio/master

name of composer
PullPackagistList UseCase implemented
Package Repository, writer and reader implemented
DoctrinePackageReader and DoctrinePackageWriter implemented
.idea folder removed
Merge pull request #13 from bigfoot90/master

PullPackagistList and GetANeverVisitedPackage use cases implemented
it works