Issue #1631662 by NormySan, hansfn: Add in a back button
Issue #2397879 by olofjohansson: "Select all" checkbox should trigger the change event for effected checkboxes
Issue #2056883 by hansfn: No message ID
Issue #2362741 by hansfn: Custom text field don't work.
Replaced timer_* functions with Timer component - ref https://www.drupal.org/node/1969828
Replaced module_exists with \Drupal::moduleHandler()->moduleExists - ref
Removed a redundant/unneeded line from last commit.
Issue #2339739 by hansfn: Respect $message['send'] when sending mail.
The value can be modified in hook_mail_alter - ref API documentation for drupal_mail.
Updated changelog for 7.x-1.1
Form API fixes for "details" type - ref https://www.drupal.org/node/2204131
Another filter format API fix.
Replaced another drupal_get_query_parameters with UrlHelper::filterQueryParameters.
Removed drupal_set_title - ref https://www.drupal.org/node/2067859
Filter format API fixes.
Replaced drupal_get_query_parameters with UrlHelper::filterQueryParameters - ref https://www.drupal.org/node/2079005
Replaced configFactory->get('xyz') with just config('xyz')
Issue #2225631 by hansfn: Using filter_fallback_format() instead of hard-coded value for message text format.
Issue #2258947 by hansfn: Call to a member function get_value() on a non-object.
Issue #2089409 by hansfn: Added support for Mandrill.
Using routing for configure key in info.yml file.
drupal_map_assoc() has been removed - ref https://drupal.org/node/2207453
Replaced @PluginID with @ViewsField.
Switched from PSR-0 to PSR-4 - ref https://drupal.org/node/2246699
Updated changelog for 7.x-1.0 - after tagging the release ...
Logical flaw: You don't need the MimeMail module to Mime encode headers/the subject.
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