THC: revamped random engine.
THC: revamped random engine.

The seed is now changed each time a new vector is sampled.
This was done in order to decouple our engine as much as possible from
the internals of Thrust.

wickedfoo/cutorch,0wu/cutorch,LinusU/cutorch,torch/cutorch,Schakirov/cutorch_my,adamlerer/cutorch,Moodstocks/cutorch,fmassa/cutorch,luketwitter/cutorch,luketwitter/cutorch,hughperkins/cutorch,torch/cutorch,Schakirov/cutorch_my,wickedfoo/cutorch,Zhen-hao/cutorch,torch/cutorch,LinusU/cutorch,yvan-sraka/cutorch,clementfarabet/cutorch,hughperkins/cutorch,0wu/cutorch,soumith/cutorch,adamlerer/cutorch,yvan-sraka/cutorch,Zhen-hao/cutorch,Moodstocks/cutorch,clementfarabet/cutorch