add icon font

git-svn-id: https://plugins.svn.wordpress.org/formidable/trunk@817687 b8457f37-d9ea-0310-8a92-e5e31aec5664
Add icon fonts

git-svn-id: https://plugins.svn.wordpress.org/formidable/trunk@817688 b8457f37-d9ea-0310-8a92-e5e31aec5664