Returned error due to unhashable type ie. pts3d[X] => X is numpy matrix in E2Rt

[JohnTailor]

Thanks for the repo. fix is easy on Python 2.7.12: pts3D = {} => pts3d = [] pts3D[X]... => pts3D.append((X,(m1,m2)) ... ... for (X,matches) in bestPts3D:

[dfridovi]

Haha glad to see this project is getting some use! Thanks for the fix.