Fixed Pop3Stream.Read() and simplified Pop3Stream.ReadLine()
Fixed Pop3Stream.Read() and simplified Pop3Stream.ReadLine()

mganss/MailKit,jamie-dainton/MailKit,rajeshwarn/MailKit,nachocove/MailKit,matt2003/MailKit,sstraus/MailKit,jstedfast/MailKit,FubarDevelopment/MailKit,eino-makitalo/MailKit,dsbenghe/MailKit