Add skip to test needing jinja2 if no jinja2.
Add skip to test needing jinja2 if no jinja2.

As title.

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