Optimisation of CSS minify

git-svn-id: https://plugins.svn.wordpress.org/wp-fastest-cache/trunk@820324 b8457f37-d9ea-0310-8a92-e5e31aec5664
Optimisation of CSS minify

git-svn-id: https://plugins.svn.wordpress.org/wp-fastest-cache/trunk@820325 b8457f37-d9ea-0310-8a92-e5e31aec5664