mono/mono — pull request #1240 by RyanMelenaNoesis (2014-08-29 00:05:27+00:00)
Title: Correct duplicate X509CertificateValidationMode definition error

Correct duplicate X509CertificateValidationMode definition error caused by enum changing assemblies between .NET 4.0 and 4.5 (introduced in previous pull request https://github.com/mono/mono/pull/1236/files)