Create Fluo status web application

[mikewalch]

Create a web application that lists all Fluo applications running on cluster (assuming they all use the same Zookeeper root dir) and gives their basic status. Initially, Fluo status web app should just implement all subcommands of the fluo command that makes sense for a web application. The Fluo status web app should only be launched once per cluster and could track multiple Fluo applications.

[keith-turner]

Were you thinking of providing more than status on this page? Like the ability to stop a Fluo application? Was asking because I think providing the ability to take actions on the web page should probably require authentication. Where just status probably does not require that.

[mikewalch]

Being able to stop a Fluo application would be cool but that could be added later (w/ authentication)