* Update the mnist test cases with the new API syntax.
* Turn on the tests for MNIST
* delete the test files got merged accidently.
* Enable the mnist tests. ready for test driven development.
* Comment out the infer first
This is to confirm that the Trainer.train is working
* Add CMake file to include the tests
* Make the train program only return avg_cost for now
* Update the tests to use the latest syntax
Jeff Wang
Luo Tao