THCudaTensor_renorm is ready for testing
added THCudaTensor_renorm prototype
added argcheck to renorm
renorm unit tests
cwrapped renorm and fixes
unit tested renorm (works)
unit tester can be called from cmd-line
Merge branch 'master' of github.com:torch/cutorch into norm
fixed argchecks
resolved conflicts
Merge pull request #14 from nicholas-leonard/norm

cutorch.renorm