NFLabs/zeppelin — pull request #188 by coolfrood (2014-10-30 18:46:09+00:00)
Title: Support for showing execution time of paragraph

This PR adds support for reporting execution time of a paragraph after completion.

![execution_time](https://cloud.githubusercontent.com/assets/5747419/4849890/008c3632-6065-11e4-8e23-027723f82ec1.png)