Update to CentOS 6.5
Improve the boot command sequence

Use a single command line, avoid the graphical installer, and use {{ .HTTPIP }} rather than the actual IP.
Also wait a bit before entering the commands to increase the chance of actually being in the boot menu.
Update the kickstart link

Instead of pointing at a specific (in this case actually non-working!) revision, point to the github UI for the
head revision.
The user is expected to find the 'raw' link there, but the page allows to also quickly look at changes etc, which
might be helpful for people unfamiliar with kickstart files.
Merge pull request #1274 from ankon/docs-qemu-centos6.5

Update the qemu example