Jetpack: Add an ` style="display:block !important;" ` to the admin notices to prevent plugins and themes from inadvertently hiding them and causing problems for users.


git-svn-id: http://plugins.svn.wordpress.org/jetpack/trunk@761829 b8457f37-d9ea-0310-8a92-e5e31aec5664
Twitter Cards: add list of plugins already offering Twitter Card functionality

git-svn-id: http://plugins.svn.wordpress.org/jetpack/trunk@761938 b8457f37-d9ea-0310-8a92-e5e31aec5664