added float32 type and sqrt tests, addressed review
added float32 type and sqrt tests, addressed review

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