Fix for re-assign task to work in outstanding tasks console when there is noboddy yet assigned to task

fix contentType Task to determine it should be editing if used again in workflow for same content type

moved content type set process variable method function to .module

- fixed show hidden tasks bug
- fixed bug with interactions with a missing task type
- added missing template file

Added logic to look for process variable called 'message' if no task variable variable called 'message' set.

- added checks to fail gracefully when trying to execute a task that is not installed

Project detail now only shows enabled tasks - with show_detail set
NOTE: DB Change - need to reinstall module.

Added error handling to review_content interactive function to show an error message if content node was deleted.