Added option to load CSS asynchronously to render your page more quickly and get a higher score on the major speed testing services
Added option to inline and minify all CSS styles and move them to the header or to the footer, to eliminate external render-blocking CSS and optimize CSS delivery.
Added option to change the default image compression level, to help your pages load faster and keep file sizes smaller.
Added memory usage information and active plugins number in the plugin options page.
Replaced PHP version info with memory usage information (more useful).
Added Romanian translation and POT file. Translators are welcome!

git-svn-id: https://plugins.svn.wordpress.org/speed-booster-pack/trunk@945508 b8457f37-d9ea-0310-8a92-e5e31aec5664