adding asynchronous-javascript by parisholley

git-svn-id: http://plugins.svn.wordpress.org/asynchronous-javascript/trunk@654657 b8457f37-d9ea-0310-8a92-e5e31aec5664
Merge branch 'master' of github.com:parisholley/wordpress-asynchronous-javascript

git-svn-id: http://plugins.svn.wordpress.org/asynchronous-javascript/trunk@654901 b8457f37-d9ea-0310-8a92-e5e31aec5664
improved depenency checking, removed unneeded call

git-svn-id: http://plugins.svn.wordpress.org/asynchronous-javascript/trunk@654931 b8457f37-d9ea-0310-8a92-e5e31aec5664
adding github ref

git-svn-id: http://plugins.svn.wordpress.org/asynchronous-javascript/trunk@654933 b8457f37-d9ea-0310-8a92-e5e31aec5664