Rename Convention.Fixtures to Convention.Classes.
Rename Type variables 'fixtureClass' to 'testClass'.
Rename Convention.FixtureExecution to Convention.ClassExecution.
Rename namespace Fixie.Tests.ClassFixtures to Fixie.Tests.TestClasses.
Rename CreateInstancePerFixture to CreateInstancePerTestsClass.
For the SelfTestConvention, rename all sample test classes from *Fixture to *TestClass.
Fixture -> TestClass renaming in LifecycleHookTests.
Test case renaming of Fixture to TestClass.
Rename Fixture.Type to Fixture.TestClass.