Release Name: 0.5

Notes:
TrackVis

version 0.5
* New field added in .trk file header. A 4x4 rotation matrix from voxel to RAS coordinate is saved in the header.
* Able to load segmentation volume with a look up table. ROI can be created based on the segmentation.
* Able to save trackgroup as VTK file in RAS coordinate so that it can be loaded in other VTK compatible visualization software.
* Added "Save all trackgroups" option.
* Added "Save all ROIs" option.
* Remembers the current working scene file once it is being saved. No need to type in scene filename repeatly.
* Fixed the bug that when saving trackgroup as nifti volume, the coordinate information was partially missing in the header.
* A few minor bug fixes.


Diffusion Toolkit

version 0.5
* Added BCC DSI table (124 directions).
* Improved track_transform tool. It resamples a track file into a new one with given registration matrix.
* Added track_info command-line tool.
* Removed the annoying debug information from nifti libs.