Correct dev-quickstart installation directions

kUse was using yum to install docker 1.7.0.  This wanted to install
all of the fedora 23 dependencies.  Instead, simply use RPM to install
via http with the --nodeps option.  This works because we don't really
need selinux since we don't support an selinux operational model.

Change-Id: I7e7fbe9cab9f38d51807442d0f6a41a344779ba2
Closes-Bug: #1468464

docs/dev-quickstart.md

@@ -36,7 +36,7 @@ If a version of Docker less than 1.7.0-dev is running on your system, stop it:
 If using an RPM based system, use the Docker 1.7.0-dev RPMs provided by the
 Fedora project:
 
-    sudo yum install https://kojipkgs.fedoraproject.org//packages/docker/1.7.0/6.git56481a3.fc23/x86_64/docker-1.7.0-6.git56481a3.fc23.x86_64.rpm
+    sudo rpm -Uvh --nodeps https://kojipkgs.fedoraproject.org//packages/docker/1.7.0/6.git56481a3.fc23/x86_64/docker-1.7.0-6.git56481a3.fc23.x86_64.rpm
 
 For Debian based systems, use the Docker installation tool provided by Docker,
 Inc.: