Change some metadata in en-nabcc.utb
Change some metadata in en-nabcc.utb

- Tables of type "computer" don't need a "contraction" field
- Add "dots"

liblouis/liblouis,liblouis/liblouis,hammera/liblouis,liblouis/liblouis,BueVest/liblouis,hammera/liblouis,liblouis/liblouis,BueVest/liblouis,hammera/liblouis,BueVest/liblouis,hammera/liblouis,BueVest/liblouis,liblouis/liblouis,hammera/liblouis,BueVest/liblouis,liblouis/liblouis,hammera/liblouis,BueVest/liblouis