[Diff since v0.6.2](https://github.com/JuliaGPU/KernelAbstractions.jl/compare/v0.6.2...v0.6.3) **Merged pull requests:** - nix overdub of _unsafe_getindex (#247) (@vchuravy) - Stop overdubbing CUDA math functions (#249) (@ali-ramadhan) - Backport #249 (#251) (@vchuravy) - Check pow overdubbing (#253) (@vchuravy)