Don't skip tests related to non-UTF data in filesystem under MidnightBSD
Don't skip tests related to non-UTF data in filesystem under Solaris
Tests - Emulate MIME::Base64::encode_base64url in tests (some cpan testers refuse to install new version of this module)
Finaly define minimal perl version as 5.8.8
Cpan Tests  - disallow Win32 for spantesters