jacksmite

Results 2 issues of jacksmite

![20170630_133513](https://user-images.githubusercontent.com/29690300/27732298-3f7c506e-5d99-11e7-9367-3d613ec7988b.jpg) It has been training for 120k global steps, but the loss curves seem to be fixed. Any suggestions?

Hi, For some reason the samples generated in train.py are very long ~50 seconds. Do you also have this issue?