Enhancements to ProceedQuestion for more flexibility

Added new parameters:

:param show_det: If True, the Detailed message will be shown initially. Useful when the details always need to be seen by the user.

:param show_ok: If True, OK button will be used instead of YES/NO. Allows results where no choice needs to be made to be queued along with the others.

:param geom_pref: Plugin-specific string for preference name to preserve dialog box geometry. Allows the user to set their preferred dialog box geometry and have it retained on a per-plugin basis.

Also, fix bug where the "Copied" button label would not revert back to "Copy to clipboard" when displaying the next results from the queue.