adding oauth2-provider by jgwpk

git-svn-id: http://plugins.svn.wordpress.org/oauth2-provider/trunk@685065 b8457f37-d9ea-0310-8a92-e5e31aec5664
INIT Upload

git-svn-id: http://plugins.svn.wordpress.org/oauth2-provider/trunk@685195 b8457f37-d9ea-0310-8a92-e5e31aec5664
- Updated trunk files

git-svn-id: http://plugins.svn.wordpress.org/oauth2-provider/trunk@691171 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixed Login Redirect

git-svn-id: http://plugins.svn.wordpress.org/oauth2-provider/trunk@695622 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update Admin Link for Delete 

git-svn-id: http://plugins.svn.wordpress.org/oauth2-provider/trunk@698425 b8457f37-d9ea-0310-8a92-e5e31aec5664
Changed Version fo update notifications to work

git-svn-id: http://plugins.svn.wordpress.org/oauth2-provider/trunk@698427 b8457f37-d9ea-0310-8a92-e5e31aec5664
Merge branch 'master' of https://github.com/jwickard/wordpress-oauth
Adding readme from authors github fork.