adding list groups, clouds, machine images, and users. cleaning up formattting
adding linebreak between reference links
Merge pull request #74 from enStratus/stop_server

adding linebreak between reference links
added link to html slideshow
Merge pull request #76 from enStratus/mixcoatl_slideshow

added link to html slideshow
A documentation for dcm-terminate-server.
Added a missing accessor to network class.
A documentation for dcm-list-networks.
A documentation for dcm-list-cm.
A documentation for dcm-list-volumes.