.travis.yml: Try to disable ``long-unit-test`` so travis doesn't time out.
.travis.yml: Try to disable ``long-unit-test`` so travis doesn't time out.

factor/factor,AlexIljin/factor,bpollack/factor,bpollack/factor,tgunr/factor,factor/factor,tgunr/factor,AlexIljin/factor,bpollack/factor,bpollack/factor,bpollack/factor,mrjbq7/factor,tgunr/factor,bpollack/factor,AlexIljin/factor,AlexIljin/factor,mrjbq7/factor,tgunr/factor,AlexIljin/factor,mrjbq7/factor,factor/factor,bpollack/factor,mrjbq7/factor,tgunr/factor,tgunr/factor,mrjbq7/factor,factor/factor,AlexIljin/factor,AlexIljin/factor,factor/factor,mrjbq7/factor,factor/factor