This release fixes a bug that caused PackageVersions to prevent
the composer remove and composer update commands to fail when
this package is removed.

In addition to that, mutation testing has been added to the suite,
ensuring that the package is accurately and extensively tested.

Total issues resolved: 3

• 40: Mutation testing, PHP 7.1 testing thanks to @Ocramius
• 41: Removing this package on install results in file access error thanks to @Xerkus
• 46: #41 Avoid issues when the package is scheduled for removal thanks to @Jean85