Merge pull request globocom#217 from globocom/change_metrics_collector

Change metrics collector

Merge pull request globocom#214 from globocom/fix_database_change_vie…

…w_form_clean

Fix database change view form clean

Fix clone, adding contacts and e-mail subscribe to clone list

Merge pull request globocom#212 from globocom/add_receive_treshold_em…

…ails_on_database

Add receive treshold emails on database

Add check to change view

Fix api docstring

Reset subscribe_to_email_events on save

Check if databse is in quarantine before sending email

Merge pull request globocom#212 from globocom/add_receive_treshold_em…

…ails_on_database

Add receive treshold emails on database

merge