Major Description
The 'Publish' feature in 0.5-SNAPSHOT doesn't work as illustrated:
https://zeppelin.incubator.apache.org/assets/themes/zeppelin/img/screenshots/publish.png
namely it will hide the interactive form set through z.input("name")/${name} etc.
This patch is submitted to display it again. (Not sure if its the best option, maybe we should use 2 different url parameters to determine if it should be displayed?)
