Preparing for v2

[wbenbihi]

Given all the feedbacks I had on this repo, I decided to start a v2 (the graph architecture will be the same) to provide an easy-to-use module. I will be glad if you can tell me which improvement/feature should be taken care of.

PS: I keep working on this code on my spare time, so it won't be released soon

[monajalal]

1. A step by step guide how to just test the model on the pre-trained model for MPII human pose dataset.
2. How to train this for a new dataset?

[BCJuan]

Same as @monajalal:

The possibility to use the code with easiness for another dataset would be a really nice feature.

[ZP-Guo]

Thank you for your code about StackedHourglss Net. I agree with them both @monajalal, @BCJuan. I think we can get help from your work if your tell us how to use other datasets on the net.
Thanks so much.