Merge pull request #7265 from s0undt3ch/develop

Don't include authorship in generated documentation.
Sometimes rxtx_factor isn't there
Same kind of problem with minDisk and minRam
Merge pull request #7266 from techhat/novafix

Fixing openstack nova error with rxtx_factor
Add nova.boot function
Merge pull request #7267 from techhat/novafix

Add nova.boot function
Don't include authorship in generated documentation, the Sphinx way.