Commits
Wes McKinney authored 0637e05d59f
ARROW-576: [C++] Complete file/stream implementation for union types Author: Wes McKinney <wes.mckinney@twosigma.com> Closes #356 from wesm/ARROW-576 and squashes the following commits: e239ba1 [Wes McKinney] Fix miniconda links 12fde46 [Wes McKinney] Complete metadata roundtrip for unions