Fixed issue #50: os.path.samefile not in Windows
Fixed whitespace
Merge pull request #51 from tamachado/master

Fixed issue #50: os.path.samefile not in Windows
Bug fixes for motion corrected sequence class
Refactoring of 2D HMM and work on 3D HMM.

Tests pass.
Working 3D HMM, though still contains rough hacks.

2D tests still pass. 3D displacements reasonable.
trim_coords for 3D displacements
Fixed exporting of frames.
Merge pull request #52 from pkaifosh/3D-HMM
Minor fix to sequence.py

Missing type cast caused motion correction to fail on Windows
Minor fix to sequence.py

Missing type cast caused motion correction to fail on Windows
Merge branch 'master' of https://github.com/tamachado/sima
Merge pull request #54 from tamachado/master

Minor fix to sequence.py
Sped up some slow tests by clipping the dataset
Merge pull request #55 from pkaifosh/master

Sped up some slow tests by clipping the dataset
bug fix for memory issue related to *it.chain
Merge branch 'master' into nathan_3D_extract_fix