Fix: breaking the SEO by Yoast plugin interface (perhaps as well as to others too). Thanks @JahLive for the bug report.
Added an except for the admin toolbar css since the Load CSS asynchronously option removes its dashicons and stylesheets.

git-svn-id: https://plugins.svn.wordpress.org/speed-booster-pack/trunk@945616 b8457f37-d9ea-0310-8a92-e5e31aec5664
Modified readme.

git-svn-id: https://plugins.svn.wordpress.org/speed-booster-pack/trunk@945620 b8457f37-d9ea-0310-8a92-e5e31aec5664