Alembic 1.5.8 Released!

[Lucas Miller]

Hello Alembic users,

Thanks to your feedback and reports we have a few bug fixes and enhancements.

API:

AbcCoreAbstract:
Fix wstring array hash calculation. (pull request 17)

Build system:
Make the OS X version check more robust to determine if C++11 flag is required. (pull request 18)

Python:

PyAlembic:
Add asOgawa option for PyOArchive and make Ogawa the default for CreateArchiveWithInfo. (pull request 16)