add BCECriterion
adding test for MSECriterion, fixed test for WeightedMSECriterion
Merge branch 'master' of github.com:torch/nn
Merge pull request #10 from y0ast/master

add BCECriterion
fixing BCECriterion, adding test, closing https://github.com/torch/nn/pull/10
Update .travis.yml
added travis build status label
criterionJacobianTest -> criterionJacobianTest1D
Merge branch 'master' of github.com:torch/nn
refactored overview. Added doc index to README
merge