Need to upgrade the model published on tfhub.dev to the newer SavedModel format

[xwk]

The current model published on tfhub.dev is still in the legacy hub.Modules format.

The drawback of this legacy format is there is no clear path to use such model format with Keras in a way which supports finetuning (it is possible to load it with hub.Keraslayer() but finetuning is not supported).

I hope the published model can be changed to the newer SavedModel format.

[0x0539]

Stay tuned, we are working on TF2.0