This patch reimplements 371dcc56e6 where the comedi_/COMEDI_ prefix was
removed. Just like that patch, this patch also allows for all old names
to resolve properly. Differently than that patch, this patch simply adds
new items in the modules dictionary with the comedi_/COMEDI_ prefix
removed. Benefits of this approach:
1) Do not have to create a fake module.
2) Tab completion works well in ipython/python since the module is left
intact.
3) Adding new items without the comedi_/COMEDI_ prefix happens only once at
module load time, instead of every time an item is requested from the
module.