Initial HDF-coupled scene code + tests
Add docstrings missing from HDF-scene code.
Fix bug in iteration over frame subrange
Add a dualScene class comparable to the old sequence class, working on HDF files only.
Initial version of scene analysis rewrite using the HDF-only code.
Scene and DualScene reimplement the concept of segments, so that analyses using the next frame are now truly possible.
Small insignificant fixes in analysis.py
Merge branch 'hdf_scene' of https://github.com/yosefm/postptv into hdf_schene
Merge branch 'hdf_scene' of https://github.com/yosefm/postptv into hdf_schene
Basic reading and extracting data from analysis files, frame-by-frame for speed and low memory usage. Allows filtering, but only for scalar columns right now.
Fixes: condition operators and scene shapes()
Add a tutorial for the new branch
Merge pull request #5 from yosefm/hdf_schene

Hdf schene representation, manipulation and saving
Add option to trim trajectories, to get around the edges of smoothing.