A generic Webapp that can start/stop nodes

[Jean-Sebastien Delfino <js...@apache.org>]

Hi all,

I've started to put together a little Webapp that can start/stop nodes, 
similar to what has been done in the shell sample. So far so good, it 
looks pretty easy to do and integrate, I just needed to add a public 
method to WebAppHelper to get its NodeFactory and create nodes with it.

I also found that starting/stopping nodes has become really fast in the 
2.x stream!
-- 
Jean-Sebastien