Invalid arguments for ReinforceCategorical

[Tord-Zhang]

4 module of nn.Sequential: ...orch/install/share/lua/5.1/dpnn/ReinforceCategorical.lua:20: invalid arguments: CudaTensor CudaTensor number expected arguments: *CudaLongTensor* CudaTensor int [boolean]
Why this error occured?

[dineshj1]

See #89 for a fix.