Some tests compare the result to english strings.
Do not test UnixCommandExecutor on Windows.
PharTest: explain why PHAR writing test are skipped.
InstallCommandTest: mock checkRequirements to allow the tests to run.
Run php_parallel_lint before all other tests.
Close#846
Added an AnsiConverter helper.
Use the AnsiConverter in the email and page templates that display the build log.
Use a dedicated stylesheet for the ANSI converter.
It can be customized.
It can be inlined in the notifications.
Do not use ProphecyTestCase when not needed.