Whitespace cleanup and basic docs.
Adding in a few constants.

KISS_PREVENT_RENDER - same as calling prevent_render(TRUE), but handy if you need to do that _before_ the controller is fully constructed.
KISS_PREVENT_ROUTE - prevents the controller from routing the request.
Improved the popover code and layout of the tables which contain machine information that comes from json data. More to come.
Improved the popover code and layout of the tables which contain machine information that comes from json data. More to come.
Almost forgot this little fella.