Release 1.3.3 for TensorFlow r1.0

Update it if you want to use TensorFlow r1.0.

This is an incomplete list among the many features added.

• Support
  • TensorBoard visualization with utils.fit by @JoelKronander
  • TensorFlow r1.0 by @zsdonghao
  • DownSampling2dLayer by @zsdonghao
• Update
  • nlp/creat_vocab, force 0 to be padding index by @zsdonghao
  • AtrousConv2dLayer change W to filters by @zsdonghao

This version works well under TF 0.10, 0.11 and 0.12 backend, it also works well with TF 1.0 in most of the case, feel free to report if you found a bug. Many thanks!