Allow to set resolution in Simplified Workflow

As Patrick, I want to be able to specify which statuses transitions to which trigger the resolution field to be set to done so that my issues have any resolution at all.

Solution

1. Allow for a tickbox per status, which makes the global transition to that status set the resolution to "Done".
2. Unmapped statuses will also display this information (not necessarily the option to change it)
3. During the conversion to simplified workflow, the user will be presented with the default choice of statuses from the "Done" column selected for the resolution but should be able to override it before finishing the conversion.

Note that this will help people who are migrating as well as ones who have already migrated to simplified workflow.

Dev Notes
Q: Is this changed in GreenHopper Configuration?
A: Its board specific so its in board configuration.

Q: How do we display the valid options as a part of the simplify dialog?
A: With a multi select combo box

Q: How many statuses can you tick?
A: No Limit

Q: What happens if the user moves a status to another column?
A: The column is moved, the tick is not changed

Q: What if the user deletes a column that has a ticked box?
A: Just move all statuses to unmapped column

Q: What if a status is dragged to unmapped?
A: Should be disabled but visible