Email notifications for failed logins

[antonsviridenko]

http://community.bluecherrydvr.com/topic/email-notifications-for-failed-logins

[quixand]

Login operations should at least be audited in the bluecherry server log. As a lot of companies will ship their logs off to other platforms for monitoring and analysis like Elk or Splunk.

[antonsviridenko]

@quixand thank you for you valuable proposition about logging, I've created new feature #142 please comment there