make ch02_sift.py a more general sift feature viewer
give sift and ch02_sift an optional histeq mode (for verve: 1.5k -> 4k features)
let ch05_recover_3d optionally do histogram equalization
let ch02_sift_match.py print number of matches
fix typo in comment, remove fixed FIXME from comment
add more debugging code to ch05_recover_3d
add test for compute_fundamental()
let test use synthetic data instead of reading a file
add test for compute_fundamental_normalized()