Added designated fund support to admin and donation form

git-svn-id: https://plugins.svn.wordpress.org/seamless-donations/trunk@794503 b8457f37-d9ea-0310-8a92-e5e31aec5664
Marking 2.5.0 as stable


git-svn-id: https://plugins.svn.wordpress.org/seamless-donations/trunk@794506 b8457f37-d9ea-0310-8a92-e5e31aec5664