Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/1210
Visualizations have incompatible license can be packaged as a [Helium
application](https://github.com/apache/zeppelin/blob/master/zeppelin-interpreter/src/main/java/org/apache/zeppelin/helium/Application.java)
and loaded dynamically. Soon, there will be [highlevel
api](https://issues.apache.org/jira/browse/ZEPPELIN-1003) to make visualization
easier based on helium.
In the future, we'll have online registry for applications. So, please
consider [use helium
framework](http://zeppelin.apache.org/docs/0.7.0-SNAPSHOT/development/writingzeppelinapplication.html).
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