extract.py now only finds the unique data by default.
extract.py now only finds the unique data by default.

No need to have E0, shift and E0+shift all the time and the line-wrapping
when running the test suite was annoying me.

hande-qmc/hande,hande-qmc/hande,ruthfranklin/hande,hande-qmc/hande,hande-qmc/hande,hande-qmc/hande