Adding max load average default value according to cpu's count

git-svn-id: https://plugins.svn.wordpress.org/hyper-cache-extended/trunk@1022567 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updating plugin version

git-svn-id: https://plugins.svn.wordpress.org/hyper-cache-extended/trunk@1022568 b8457f37-d9ea-0310-8a92-e5e31aec5664