update to 2.9

Genericons: Update to v3.0.3

git-svn-id: https://plugins.svn.wordpress.org/jetpack-omnisearch/trunk@868400 b8457f37-d9ea-0310-8a92-e5e31aec5664
minor improvements

git-svn-id: https://plugins.svn.wordpress.org/jetpack-omnisearch/trunk@869522 b8457f37-d9ea-0310-8a92-e5e31aec5664