Numba 0.46.0 final checklist

[seibert]

llvmlite

• tag 0.30.0 on release branch
• build conda packages on buildfarm
• build wheels [linux-32, linux-64, osx-64, win-32, win-64] * [Python 2.7, 3.5, 3.6, 3.7]
• verify conda packages uploaded to Anaconda Cloud
• upload wheels and sdist to PyPI
• Prep for 0.31.0dev0 Begin development of 0.31.0 llvmlite#520

numba

• cherry pick Bump cuda array interface to version 2 #4675 merge Apply #4675 to on 0.46 release branch #4680 to release branch
• update changelog with Bump cuda array interface to version 2 #4675 and large warning about incompatibility with Numba's device arrays and CuPy until next CuPy release. (Note that Numba CUDA kernels will work with older CuPy device arrays.) Update changelog for 0.46 final release #4682
• cherry pick changelog update to release branch
• tag 0.46.0 on release branch
• add release notebook to numba-examples repo
• build conda packages on buildfarm
• build wheels
• upload wheels and sdist to PyPI
• Verify packages uploaded to Anaconda Cloud
• upload 0.46.0 docs, update "latest" link
• Send announcement email
• Post link to twitter