Added. Asset version for the css styles and scripts

git-svn-id: https://plugins.svn.wordpress.org/sucuri-scanner/trunk@941701 b8457f37-d9ea-0310-8a92-e5e31aec5664
Modified. Descentralize the function to ignore files

git-svn-id: https://plugins.svn.wordpress.org/sucuri-scanner/trunk@941706 b8457f37-d9ea-0310-8a92-e5e31aec5664