[minor] Dont install rdoc or ri for gems.
[doc] Update installation instructions for chef@10.18.
Merge pull request #3 from indexzero/fgems

A couple of minor changes
(JE: it doesn't have the qemu-img changes, and the rest LGTM.)
Allow VBoxManage to reside anywhere in $PATH (ie, if you use MacPorts)
patch to get up to newer (3.0.x) rabbitmq releases
getting rabbitmq 3.0 HA working
Merge branch 'master' into grizzly