Modification to make the events edition responsive

git-svn-id: https://plugins.svn.wordpress.org/cp-multi-view-calendar/trunk@1009057 b8457f37-d9ea-0310-8a92-e5e31aec5664
CSS styles updated to match the new responsive layout

git-svn-id: https://plugins.svn.wordpress.org/cp-multi-view-calendar/trunk@1009058 b8457f37-d9ea-0310-8a92-e5e31aec5664
Main script file updated to generate responsive layout.

git-svn-id: https://plugins.svn.wordpress.org/cp-multi-view-calendar/trunk@1009060 b8457f37-d9ea-0310-8a92-e5e31aec5664
Responsive events are now also available in configuration panels.

git-svn-id: https://plugins.svn.wordpress.org/cp-multi-view-calendar/trunk@1009062 b8457f37-d9ea-0310-8a92-e5e31aec5664