Issue #3011495 by miksha: Unsupported operand types in form.inc on line 2760 when adding a rule Launch a Maestro workflow

Fixes for the URL used to add JS and CSS as per issue 2080475 https://www.drupal.org/node/2080475. Patch submitted by @MaxMendez https://www.drupal.org/u/maxmendez

Fix for Issue #1294984. This issue has been open for far too long.  However this fix for the latest rev of Maestro adds back in the notification flagging.

workflow_name token in notification will now retrieve the dynamic process flow name in case it's been changed

Fix for messed up w/f display in the task editor - missing div from change made earlier to support displaying of regen option

Fix for the status 'cancelled' code. Needs to be a postive value if the engine is going to schedule a next step

Added the handy maestro-purge command for drush to purge all maestro execution history. Handy for deleting all testing execution data

Fix AND Task - when editing in the w/f editor, the refresh of the task was dropping part of the task container

fix for the scrolltotask feature, it was disabling the AJAX handler for the interactive task submit buttons.