Create rotbvecs

sourced from: 
https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=FSL;de2e7bc3.0903 

and

https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0903&L=FSL&P=R104946&1=FSL&9=A&J=on&X=4BB50011B0C72E4ACB&Y=kjlee@rcbi.rochester.edu&d=No+Match;Match;Matches&z=4

Thanks to Martin Kavec, Matt Glasser and others