Problem: travis tests are taking too long Solution: speed up compilation time by using `make -j4`
Problem: travis tests are taking too long
Solution: speed up compilation time by using `make -j4`

twhittock/zproject,paddor/zproject,asokoloski/zproject,hintjens/zproject,zeromq/zproject,eburkitt/zproject,hintjens/zproject,taotetek/zproject,eburkitt/zproject,keent/zproject,paddor/zproject,taotetek/zproject,keent/zproject,twhittock/zproject,zeromq/zproject,zeromq/zproject,asokoloski/zproject,taotetek/zproject,paddor/zproject