Dropout tests
Merge pull request #40 from nicholas-leonard/dropout

Dropout tests
L1Cost CUNN implementation
Enforce devbice ownership in SpatialConvolution
Merge pull request #43 from ajtulloch/enforce-device-ownership

Enforce device ownership in SpatialConvolutionMM{_BHWD}
Merge https://github.com/torch/cunn into l1-cost
CUDA ClassNLLCriterion implementation
Merge pull request #44 from ajtulloch/cunn-cuda-implementation

CUDA ClassNLLCriterion implementation
adding missing assert
merge
Merge branch 'master' into linear2