Bohrium

Release notes
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- Introducing a new Python package, ``bh107``, which is a pure Python front-end that imitate NumPy.

Release notes
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- User kernels https://bohrium.readthedocs.io/users/python/index.htmluserkernel
- Extended the C++ interface significantly https://bohrium.readthedocs.io/users/cpp.html

Release notes
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- Separation of the versions of Bohrium and Bohrium API.
- Simplified how to choose where the OpenCL backend should run.
* Set `BH_OPENCL_DEVICE_NUMBER` to the device number you want.
* Run `python -m bohrium_api --info` to see all available devices (and their numbers).

Release notes
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- Major code clean up
- Divided the Python fronted (bridge) into two parts: `bohrium_api` and `bohrium`.
- Added wheel packages with Python3.7

Release notes
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- Implement some GPU optimizations
- Dynamic views is changed (skjoenberg):
* Now the sliding view information is transferred to the cxx bridge right after the view is flushed, instead of right after indexing. The sliding view information is now stored in a Python object called dynamic_view_info.
* Sliding views now allow changes to shape between iterations
* Sliding views now support broadcasting
* Sliding views now support nesting sliding views (such as a=[i:i+5], b=a[i])
* Iterators can now be in grids corresponding to nested loops. The iterators can not be mixed when indexing into the same dimension.
* Temporary arrays now inherit the dynamic changes of the views involved in the operation

Release notes
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- Implemented a malloc cache, which should speedup most applications
- Implemented lossy channels in the Proxy VEM
- Implemented `hstack()` and friends