devstack.org site updates

Includes:
* Change Precise to Trusty
* Add the new plugin phase
* Remove deprecated config options
* much, much more

Change-Id: I0385f18a3256ad37a611e505e49572f27b3bcc10
diff --git a/docs/source/guides/single-machine.html b/docs/source/guides/single-machine.html
index 2280793..ca9cafa 100644
--- a/docs/source/guides/single-machine.html
+++ b/docs/source/guides/single-machine.html
@@ -53,7 +53,7 @@
         </div>
         
         <h3>Minimal Install</h3>
-        <p>You need to have a system with a fresh install of Linux.  You can download the <a href="https://help.ubuntu.com/community/Installation/MinimalCD">Minimal CD</a> for Ubuntu 12.04 (only 27MB) since DevStack will download &amp; install all the additional dependencies.  The netinstall ISO is available for <a href="http://mirrors.kernel.org/fedora/releases/18/Fedora/x86_64/iso/Fedora-18-x86_64-netinst.iso">Fedora</a> and <a href="http://mirrors.kernel.org/centos/6.4/isos/x86_64/CentOS-6.4-x86_64-netinstall.iso">CentOS/RHEL</a>.  You may be tempted to use a desktop distro on a laptop, it will probably work but you may need to tell Network Manager to keep its fingers off the interface(s) that OpenStack uses for bridging.</p>
+        <p>You need to have a system with a fresh install of Linux.  You can download the <a href="https://help.ubuntu.com/community/Installation/MinimalCD">Minimal CD</a> for Ubuntu releases since DevStack will download &amp; install all the additional dependencies.  The netinstall ISO is available for <a href="http://mirrors.kernel.org/fedora/releases/18/Fedora/x86_64/iso/Fedora-20-x86_64-netinst.iso">Fedora</a> and <a href="http://mirrors.kernel.org/centos/6.5/isos/x86_64/CentOS-6.5-x86_64-netinstall.iso">CentOS/RHEL</a>.  You may be tempted to use a desktop distro on a laptop, it will probably work but you may need to tell Network Manager to keep its fingers off the interface(s) that OpenStack uses for bridging.</p>
         
         <h3>Network Configuration</h3>
         <p>Determine the network configuration on the interface used to integrate your