Merge branch 'release/0.4.1' into develop
fixed indentation
introducing a version class
introducing a getter and setter for the new version
using the version class with vcs
using the version class in other classes
using the version class in other classes
fixed the composer persister
fixed the project description
improved exception message
Merge branch 'feature/5_no_release_exception' into develop
Release of new version 0.4.2
Merge branch 'release/0.4.2'