added css classes to registration form to allow customization

git-svn-id: https://plugins.svn.wordpress.org/gotowp/trunk@856519 b8457f37-d9ea-0310-8a92-e5e31aec5664
added css classes to registration form to allow customization

git-svn-id: https://plugins.svn.wordpress.org/gotowp/trunk@856927 b8457f37-d9ea-0310-8a92-e5e31aec5664
added new app for key and access token generation. Keys generated through app.gotowp.com are stable for 1 year

git-svn-id: https://plugins.svn.wordpress.org/gotowp/trunk@857462 b8457f37-d9ea-0310-8a92-e5e31aec5664