Update to 0.2.7. From the changelog:

- Run tests on Python 3.8
- Get Windows CRLF line endings into
  VerifyTests.test_verify_file_with_windows_1252_encoding.approved.txt
- Rename testFile.txt to exampleFile.txt to prevent the test framework
  needlessly attempting to load it as source code
- Add handling of text encoding (issue #50), line endings (issue #62),
  and generally improve flexibility for handling multiple platforms
- Add PyTestNamer which uses the 'request' fixture to discover all
  needed info
- Re-distribute functionality between Namer and StackFrameNamer to make
  it easier to subclass
- Split Namer into two classes - added subclass StackFrameNamer
- Added ScenarioNamer for use with Parameterized tests.
- Improve the documentation for users of pytest, and for developers
- Fix crash when namer was configured to use a directory that
  didn't exist
- Add 'verify_xml' function and associated test case

(schmonz)