FilterRule cassandra model to store message processing rules
Merge branch 'master' into basic_filter
list tags to add when rule match, stop_condition can't be a boolean need nullable
core FilterRule with an eval method
rules as a property of an user, management of rule_id counter
Merge pull request #17 from gdchamal/cli_create_user

a create user method for the basic cli
add many properties to MailMessage to make delivery more correct
delivery process user.rules. Security level is not anymore a random
Merge pull request #18 from gdchamal/basic_filter

Basic filtering rules