* Update main.css
Make it more obvious that a slider is disabled.
* Update main.css
Make it more obvious that a radio slider is disabled.
* Update cacti.sql
Fixed the default value for the 30 second polling and amended the default values for the 1 minute polling for new installs
* Add ability to Hide the Graph Drilldown icons from the graph_view.php and graph.php pages
The icons are on the right hand side of the graphs and the default behaviour is to display them unless you hide them per user in the permissions tab
* Updated CHANGELOG
* Change the Realm from 2001 to 27 as 100 and above are reserved for plug-ins.
* Formatting change for neatness.
* Update CHANGELOG to reference this ticket number. Changed Drilldown to Drilldowns
Co-authored-by: TheWitness <thewitness@cacti.net>