doc: update changelog

Author: mgxd

CHANGELOG.md

@@ -4,16 +4,22 @@ All notable changes to this project will be documented (for humans) in this file
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [Unreleased] - Date
-TODO Summary
+## [0.5] - TBD
+First release after major refactor
 ### Added
 - [CHANGELOG.md](https://github.com/nipy/heudiconv/blob/master/CHANGELOG.md)
+- [Regression testing](https://github.com/nipy/heudiconv/blob/master/tests/test_regression.py) on real data (using datalad)
 ### Changed
 - Refactored into a proper `heudiconv` Python module
-- `Dockefile` is generated by NeuroDocker
+- `Dockerfile` is generated by [neurodocker](https://github.com/kaczmarj/neurodocker)
+- Logging verbosity reduced
+- Increased leniency with missing DICOM fields
 ### Removed
 ### Deprecated
 ### Fixed
+- Consistency with converted files permissions
+- Ensured subject id for BIDS conversions will be BIDS compliant
+- Re-add `seqinfo` fields as column names in generated `dicominfo`
 ### Security
 
 ## [0.4] - 2017-10-15
@@ -67,4 +73,4 @@ TODO Summary
 ## References
 [DBIC]: http://dbic.dartmouth.edu
 [datalad]: http://datalad.org
-[dcm2niix]: https://github.com/rordenlab/dcm2niix
+[dcm2niix]: https://github.com/rordenlab/dcm2niix