Update Travis-CI script to use llvm3.3
Update Travis-CI script to use llvm3.3

ssarangi/numba,numba/numba,stefanseefeld/numba,GaZ3ll3/numba,stonebig/numba,gmarkall/numba,stefanseefeld/numba,gdementen/numba,stuartarchibald/numba,jriehl/numba,stefanseefeld/numba,cpcloud/numba,pitrou/numba,stonebig/numba,GaZ3ll3/numba,stonebig/numba,sklam/numba,numba/numba,stuartarchibald/numba,gdementen/numba,cpcloud/numba,pitrou/numba,ssarangi/numba,gmarkall/numba,numba/numba,stefanseefeld/numba,jriehl/numba,IntelLabs/numba,GaZ3ll3/numba,gdementen/numba,sklam/numba,jriehl/numba,gmarkall/numba,sklam/numba,IntelLabs/numba,gmarkall/numba,gdementen/numba,stuartarchibald/numba,sklam/numba,IntelLabs/numba,seibert/numba,GaZ3ll3/numba,IntelLabs/numba,seibert/numba,cpcloud/numba,seibert/numba,pombredanne/numba,numba/numba,stefanseefeld/numba,pitrou/numba,seibert/numba,ssarangi/numba,pombredanne/numba,ssarangi/numba,gmarkall/numba,jriehl/numba,jriehl/numba,numba/numba,stonebig/numba,IntelLabs/numba,pitrou/numba,cpcloud/numba,gdementen/numba,seibert/numba,ssarangi/numba,stuartarchibald/numba,stonebig/numba,GaZ3ll3/numba,pombredanne/numba,pombredanne/numba,pitrou/numba,cpcloud/numba,pombredanne/numba,sklam/numba,stuartarchibald/numba