* Fixed some timing issues in archives

git-svn-id: https://plugins.svn.wordpress.org/google-sitemap-generator/trunk@898852 b8457f37-d9ea-0310-8a92-e5e31aec5664
* Improved check for problems before gzipping

git-svn-id: https://plugins.svn.wordpress.org/google-sitemap-generator/trunk@898855 b8457f37-d9ea-0310-8a92-e5e31aec5664