CHANGELOG for v4.0.1

Clarify how slowThreshold 0 works

CHANGELOG updated for v3.3.0 release

Exclude testing PHPUnit 9 with unsupported PHP versions

Merge pull request #54 from localheinz/feature/normalize

Enhancement: Normalize composer.json

Link to RSpec repository

Formatting

Merge branch '1.0' into 1.1

1.0 versions are no longer compatible with PHPUnit 6+

PHPUnit 6 switched to using vendor namespaces.

If you require PHPUnit 6+ support please use phpunit-speedtrap
dev-master or 2.0 release branch.

Merge pull request #31 from johnkary/psr4

Support PSR-4 autoloading