Updates to the Facebook sharing icons.



git-svn-id: https://plugins.svn.wordpress.org/jetpack/trunk@746768 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updates to the Minileven stylesheet.



git-svn-id: https://plugins.svn.wordpress.org/jetpack/trunk@746769 b8457f37-d9ea-0310-8a92-e5e31aec5664