Refactoring and error handling
Merge pull request #13 from marek-ganko/error-handling

Refactoring and error handling
get_message_stats has "unique_opened", "unique_clicked", "goals" and "unique_goals" counters added, get_webforms / get_webform methods added
formatting fixed
formatting fixed
delete_draft method added
get_messages / get_message return every kind of autoresponder messages with their "status" and "based_on" informations. get_messages / get_message allow to check "content_types" without fetching content
get_imports / get_import, get_import_stats methods added
fix link
fix link
fixed documentation of autoresponder methods because they can be used only on time based autoresponders
'Message cannot be deleted' error thrown when message is in use
Method add_contact() can no longer update contact, set_contact_*() methods should be used for that.
Removed deprecated "action" param from examples
Opencart Plugin v1.3 - compressed plugin files
get_message_stats has "unsubscribes" counter added
Wordpress plugin v2.0
get_messages / get_message have many additional time and action related informations about autoresponders
Merge branch 'master' of github.com:GetResponse/DevZone
get_contacts_unsubscription_stats method added