limit environments to current choices, mostly for the help cue it brings
Added nat role
added readme for nat
Merge pull request #37 from inve1/nat

Nat role
WIP: adding generic java support for #35 and rss demo for #18, not yet complete
add meta files for rssdemo, correct to use jar vs war.
props files for middle tier, path corrections for app location
add the _instance_classname needed for jsvc to set the execution class
fixup cass host reference in rss middle
setup a user for jsvc daemons
accumulated fixes, also, use jar xf vs unzip for all existing extractions
fixes to the upstart script for jsvc daemon instances
one more fix to jsvc stuff
switch to my fork of recipes-rss which has been commons-daemon enabled, copy in edge resources as the app oddly needs, and last fixups to the jsvc daemon instance launch script
add rssdemo to where turbine will look
add the rssdemo schema role
tell buri the fluxdemo all in one role changed names
add all-in-one for rss demo