A global message queue system to allow the story author to more easily hook into the Inventory and Apparel UIs and display various flavor texts and do other processing while a player is fooling around with Inventory and Apparel.
May change as we rejigger the UIs. Maybe ought to move from here to the Inventory UI classes.
If the queue is enabled, push a message into the top of the queue.
Returns: void
If the queue is enabled, push a message onto the bottom of the queue.
Returns: void
If the queue is enabled, shift a message off the bottom of the queue.
Returns: the message being shifted off, or null if the queue is disabled.
Dump the whole queue as a string, using the given separator. Clear the queue.
Returns: the whole queue as a single string
If the queue is already enabled, to nothing. Otherwise enable the queue, filling it with the given array of strings.
Returns: void
Disable and clear the queue.
Returns: the contents of the queue before it was cleared.