Don't allow set_num_threads(0)
Don't allow set_num_threads(0)

sklam/numba,seibert/numba,stuartarchibald/numba,gmarkall/numba,numba/numba,IntelLabs/numba,stuartarchibald/numba,numba/numba,stuartarchibald/numba,seibert/numba,cpcloud/numba,IntelLabs/numba,numba/numba,seibert/numba,gmarkall/numba,sklam/numba,stuartarchibald/numba,numba/numba,stonebig/numba,cpcloud/numba,seibert/numba,sklam/numba,stonebig/numba,numba/numba,gmarkall/numba,IntelLabs/numba,stonebig/numba,gmarkall/numba,IntelLabs/numba,gmarkall/numba,cpcloud/numba,sklam/numba,stuartarchibald/numba,stonebig/numba,stonebig/numba,cpcloud/numba,seibert/numba,IntelLabs/numba,cpcloud/numba,sklam/numba