Thanks to tmccombs this commit fixes some inconsitencies in #3730.
These inconsitencies were:
- Fixed the oversight of missing the implementation of expand_center for
center_ and right_
- Removes a last minut printf debugging statment I missed.
This Patch allows the stretching of modules-{left,center,right} as well
add a "expand" flag to AModule. This allows one module to consume the
leftover space.
To allow the left or right modules to fully consume the center, the
changes also include a way to remove the center box (center_)
altogether.