Add email notification if satis failed#36

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dubrsl wants to merge 5 commits intorealshadow:masterfrom

laboro:master

Commits on Aug 10, 2018

Added email notifications
anyt
committed

Commits on Aug 13, 2018

Fix error message send command
dubrsl
committed

Commits on Aug 28, 2018

Set email and message to null, so the email does not get send in fresh install
dubrsl
committed

Commits on Sep 14, 2018

Merge remote-tracking branch 'upstream/master' into add_providers_history_size
dubrsl
committed
We use option providers: yes. In this case happen https://github.com/composer/satis/issues/494
dubrsl
committed