working on validing new CSV output code in FFLD
Merge branch 'master' of https://github.com/forresti/piggyHOG
back to computing all levels, for verifying correctness of new csvwrite
ffld and voc5 headers claim same size. but, somehow the *actual* size is different
fixed new csvwrite. problem was that we were accidentally adding an extra column at the right. works now, and gives same results as before.