0.7.1 to 0.7.2 - minify css files

git-svn-id: https://plugins.svn.wordpress.org/wp-fastest-cache/trunk@800585 b8457f37-d9ea-0310-8a92-e5e31aec5664
0.7.1 to 0.7.2 - minify css files

git-svn-id: https://plugins.svn.wordpress.org/wp-fastest-cache/trunk@800586 b8457f37-d9ea-0310-8a92-e5e31aec5664