Receive email when Whisper message is opened

[zlatkobijelic]

Allow the sender to set up a email notification when the whisper was opened. www.viacry.pt has this now for their one-time link.

[NoiSek]

Don't add any more features to "Feature Complete" please, hard to hit a moving target and we're starting to suffer from feature creep.

[zlatkobijelic]

Sounds good!