The tool and data was moved to nototools.
Makefile now needs to invoke the tool as a script, rather than passing
it to python, since the tool is no longer local. Running setup.py in
nototools will make the script accessible. Setup (apparently) copies
the script to /usr/local/bin and it is not automatically updated when
nototools changes, still need to figure out how to address this.
emoji-data and the code to process it might be useful, but it not
actually used by the tool at present.
The tool currently assumes that all emoji glyphs mapped by the default
cmap share the same presentation.
