BVLC/caffe — pull request #558 by sguada (2014-06-28 18:33:56+00:00)
Title: Always create CAFFE:RNG for prefetch thread to simplify logic

To avoid untested cases in the `Data_layer`, `Image_Data_Layer` and `Window_Data_Layer` always create the random number generator.
This should fix #553 #508