add list nodes by ids to virtualbox
add list nodes by ids to fgcp
add list nodes by ids to joyent-cloudapi
add list nodes by ids to google-compute-engine
add list nodes by ids to abiquo
Merge pull request #47 from jclouds/listnodes

Listnodes (1.6.x)
Merge pull request #48 from rackerlabs/1.6.x

The Record API for Rackspace Cloud DNS.