Add comment for how to set the CUDA path when cuda tools are installed by the package manager.
in Caffe::SetDevice, call cudaSetDevice before Get

Otherwise initialization will be performed on whichever device is
default.
Merge pull request #507 from longjon/set-device-early

Fix Caffe::SetDevice to avoid initializing on default device
Merge pull request #504 from leelurch/Config-Example-Ubuntu14.04

Add comment for how to set the CUDA path when cuda tools are installed b...
Set device_id at the begining of Solver.Init() to avoid using memory in the default GPU
Merge pull request #521 from sguada/set_device_id_at_init

Set device_id at the beginning of Solver.Init()
remove erroneous comment in ArgMaxLayer
Fix the condition prefetch_needs_rand in the ImageDataLayer
Initialize the RNG generator with an orthogonally newed Generator