Corrected depreciated functions and tested using ipython

[HyoungsungKim]

As we know original version was implemented using python2 and pytorch 0.3.

So I corrected depreciated things to fix errors and warnings.

Furthermore, to understand how few-shot learning works, I tested using ipython.

I hope it is helpful to someone who just started to learn few-shot learning like me.

I implemented omniglot first and miniimagenet will be added soon.

Omniglot

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